Standoffs & Spacers – Mouser United Kingdom

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Round Clear Hole Spacers

Keystone Electronics Round Clear Hole Spacers are available in four types of material with clearance holes for #4, #6, #8, and #10 screw sizes. The aluminium spacers feature a clear Iridite finish in accordance with MIL-C-5541 standards, while the brass spacers have a nickel finish in accordance with QQ-N-290 requirements. The insulated types include nylon 6/6 spacers in a natural colour and phenolic spacers manufactured from a natural colour PBE-grade material. Keystone Electronics Round Clear Hole Spacers have an outer diameter of 0.250" (6.35 mm) or 0.312" (7.925 mm) and an overall length of 0.125" (3.175 mm) to 2" (50.8 mm) with threaded or unthreaded options.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Length	Material	Outside Diameter	Plating	Gender	Packaging
Standoffs & Spacers RD ALUM 4 X .250" 3457 Keystone Electronics 1: £0.257 15,794In Stock	Mfr. Part No. 3457 Mouser Part No 534-3457	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .250" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	15,794In Stock	£0.257 £0.215 £0.192 £0.167 View £0.166 £0.148 £0.14 £0.128 £0.12	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .125" 2036 Keystone Electronics 1: £0.223 31,421In Stock	Mfr. Part No. 2036 Mouser Part No 534-2036	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	31,421In Stock	£0.223 £0.182 £0.162 £0.137 View £0.119 £0.109 £0.096	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 1/8" NYLON SPACER 875 Keystone Electronics 1: £0.239 93,156In Stock 28,500On Order	Mfr. Part No. 875 Mouser Part No 534-875	Keystone Electronics	Standoffs & Spacers 1/8" NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	93,156In Stock 28,500On Order On Order Ship Dates Mfr. No: 875 Stock: 93,156 Can Dispatch Immediately On Order: 14,400 Expected 21/09/2026 14,100 Expected 12/10/2026 Factory Lead Time: 6 Weeks	£0.239 £0.236	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers NYLON SPACER 884 Keystone Electronics 1: £0.223 25,056In Stock	Mfr. Part No. 884 Mouser Part No 534-884	Keystone Electronics	Standoffs & Spacers NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	25,056In Stock	£0.223 £0.173 £0.154 £0.13 View £0.107 £0.097 £0.09 £0.083	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 1454B Keystone Electronics 1: £1.01 400In Stock	Mfr. Part No. 1454B Mouser Part No 534-1454B	Keystone Electronics	Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	£1.01 £0.765 £0.713 £0.705 View £0.643 £0.461 £0.418 £0.41	Min.: 1 Mult.: 1	Spacers	Round	9.52 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X1/4"SPACER RND 1457A Keystone Electronics 1: £0.565 630In Stock	Mfr. Part No. 1457A Mouser Part No 534-1457A	Keystone Electronics	Standoffs & Spacers 1/4"X1/4"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	630In Stock	£0.565 £0.431 £0.409 £0.37 View £0.313 £0.251 £0.229 £0.21	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1457B Keystone Electronics 1: £0.616 5,064In Stock	Mfr. Part No. 1457B Mouser Part No 534-1457B	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	5,064In Stock	£0.616 £0.467 £0.445 £0.419 View £0.418 £0.379 £0.272 £0.248 £0.233	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .750" RND SPACER 1457D Keystone Electronics 1: £1.29 420In Stock	Mfr. Part No. 1457D Mouser Part No 534-1457D	Keystone Electronics	Standoffs & Spacers .750" RND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	420In Stock	£1.29 £0.995 £0.943 £0.925 View £0.882 £0.853 £0.593 £0.539	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1481 Keystone Electronics 1: £0.599 98In Stock	Mfr. Part No. 1481 Mouser Part No 534-1481	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	98In Stock	£0.599 £0.458 £0.416 £0.354 View £0.293 £0.272 £0.246 £0.237	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass 1482 Keystone Electronics 1: £0.702 2,003In Stock	Mfr. Part No. 1482 Mouser Part No 534-1482	Keystone Electronics	Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	2,003In Stock	£0.702 £0.541 £0.491 £0.416 View £0.346 £0.314 £0.29 £0.282	Min.: 1 Mult.: 1	Spacers	Round	12.7 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 1662 Keystone Electronics 1: £1.94 94In Stock	Mfr. Part No. 1662 Mouser Part No 534-1662	Keystone Electronics	Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	94In Stock	£1.94 £1.85 £1.53 £1.32 View £0.848 £0.77 £0.745	Min.: 1 Mult.: 1	Spacers	Round	6.35 mm	Brass	7.92 mm	Nickel	Female	Bulk
Standoffs & Spacers RD ALUM 4 X .875" 3402 Keystone Electronics 1: £0.608 976In Stock	Mfr. Part No. 3402 Mouser Part No 534-3402	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .875" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	976In Stock	£0.608 £0.465 £0.423 £0.36 View £0.299 £0.266 £0.247 £0.233	Min.: 1 Mult.: 1	Spacers	Round	0.875 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .125" 3403 Keystone Electronics 1: £0.257 9,542In Stock	Mfr. Part No. 3403 Mouser Part No 534-3403	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	9,542In Stock	£0.257 £0.21 £0.189 £0.159 View £0.132 £0.119 £0.109 £0.106	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .625" 3429 Keystone Electronics 1: £0.496 250In Stock	Mfr. Part No. 3429 Mouser Part No 534-3429	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .625" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	250In Stock	£0.496 £0.384 £0.344 £0.291 View £0.242 £0.223 £0.203 £0.189	Min.: 1 Mult.: 1	Spacers	Round	0.625 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers .250 X .375 #4 ROUND SPACER 3458 Keystone Electronics 1: £0.419 1,051In Stock 1,000Expected 28/09/2026	Mfr. Part No. 3458 Mouser Part No 534-3458	Keystone Electronics	Standoffs & Spacers .250 X .375 #4 ROUND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,051In Stock 1,000Expected 28/09/2026	£0.419 £0.325 £0.291 £0.246 View £0.204 £0.187 £0.17 £0.158	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .500" 3459 Keystone Electronics 1: £0.462 2,047In Stock	Mfr. Part No. 3459 Mouser Part No 534-3459	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	2,047In Stock	£0.462 £0.352 £0.314 £0.266 View £0.221 £0.203 £0.185 £0.172	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RND ALUM #6 X .25" 3464 Keystone Electronics 1: £0.282 4,289In Stock	Mfr. Part No. 3464 Mouser Part No 534-3464	Keystone Electronics	Standoffs & Spacers RND ALUM #6 X .25" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	4,289In Stock	£0.282 £0.242 £0.223 £0.192 View £0.159 £0.148 £0.133 £0.125	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .375" 3465 Keystone Electronics 1: £0.428 3,612In Stock	Mfr. Part No. 3465 Mouser Part No 534-3465	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	3,612In Stock	£0.428 £0.325 £0.291 £0.246 View £0.204 £0.189 £0.17 £0.158	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .750" 3467 Keystone Electronics 1: £0.547 330In Stock 700Expected 28/09/2026	Mfr. Part No. 3467 Mouser Part No 534-3467	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .750" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	330In Stock 700Expected 28/09/2026	£0.547 £0.416 £0.382 £0.347 View £0.269 £0.237 £0.225 £0.209	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .375" 3472 Keystone Electronics 1: £0.41 400In Stock	Mfr. Part No. 3472 Mouser Part No 534-3472	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	£0.41 £0.325 £0.291 £0.246 View £0.204 £0.187 £0.17 £0.158	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .500" 3473 Keystone Electronics 1: £0.376 1,064In Stock	Mfr. Part No. 3473 Mouser Part No 534-3473	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,064In Stock	£0.376 £0.28 £0.251 £0.212 View £0.18 £0.171 £0.148	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum 3477 Keystone Electronics 1: £1.74 644In Stock	Mfr. Part No. 3477 Mouser Part No 534-3477	Keystone Electronics	Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	644In Stock	£1.74 £1.35 £1.20 £1.07 View £0.813 £0.745	Min.: 1 Mult.: 1	Spacers	Round	50.8 mm	Aluminum	6.35 mm	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .125" 4258 Keystone Electronics 1: £0.317 1,210In Stock	Mfr. Part No. 4258 Mouser Part No 534-4258	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,210In Stock	£0.317 £0.241 £0.216 £0.182 View £0.151 £0.139 £0.126 £0.117	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers SPACER Replaced NC1115910A 4263 Keystone Electronics 1: £0.659 1,710In Stock	Mfr. Part No. 4263 Mouser Part No 534-4263	Keystone Electronics	Standoffs & Spacers SPACER Replaced NC1115910A Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,710In Stock	£0.659 £0.503 £0.458 £0.389 View £0.325 £0.272 £0.257	Min.: 1 Mult.: 1	Spacers	Round	12.7 mm	Aluminum	7.92 mm	Iridite	Female / Female	Bulk
Standoffs & Spacers SPACER Replaced NC1116710A 4267 Keystone Electronics 1: £1.03 390In Stock	Mfr. Part No. 4267 Mouser Part No 534-4267	Keystone Electronics	Standoffs & Spacers SPACER Replaced NC1116710A Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	390In Stock	£1.03 £0.786 £0.722 £0.706 View £0.624 £0.519 £0.425 £0.41	Min.: 1 Mult.: 1	Spacers	Round	25.4 mm	Aluminum	7.92 mm	Iridite	Female / Female	Bulk