Circular MIL Spec Backshells – Mouser United Kingdom

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Swept Elbow Backshells

TE Connectivity's (TE) Polamco Swept Elbow Backshells are designed with a smooth internal bore and a continuous bend radius. TE's Swept Elbow Backshells are available in the band-termination (BT) style, offering up to 20% weight savings over traditional backshells. Swept Elbow Backshells are ideal for various aerospace and defense applications, where a reliable termination solution is required. Swept Elbow Backshells serve a wide range of circular connectors, including MIL-DTL-38999 series III and IV and MIL-DTL-26482 series 2. The backshells include a range of entry sizes from 6mm to 29mm to suit a designer's application cable diameters.

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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.	RoHS	MIL Type	Product	Shell Style	Shell Size	Shell Plating	Shell Material
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-11-06-1-B-SE TE Connectivity / Polamco 1: £257.86 53In Stock	Mfr. Part No. BTH3-11-06-1-B-SE Mouser Part No 571-BTH3-11-06-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	53In Stock	£257.86 £245.90 £238.70	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	11	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-23-17-1-B-SE TE Connectivity / Polamco 1: £268.46 49In Stock	Mfr. Part No. BTH3-23-17-1-B-SE Mouser Part No 571-BTH3-23-17-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	49In Stock	£268.46 £248.53	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Band Lock Adapters	90 Deg	23	Cadmium	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-25-19-1-B-SE TE Connectivity / Polamco 1: £302.73 44In Stock	Mfr. Part No. BTH3-25-19-1-B-SE Mouser Part No 571-BTH3-25-19-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	44In Stock	£302.73 £275.37 £265.46	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	25	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-25-19-1-C-SE TE Connectivity / Polamco 1: £464.72 13In Stock	Mfr. Part No. BTH3-25-19-1-C-SE Mouser Part No 571-BTH3-25-19-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	13In Stock	£464.72 £461.69 £335.60	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	25	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-19-13-1-C-SE TE Connectivity / Polamco 1: £270.68 12In Stock	Mfr. Part No. BTH3-19-13-1-C-SE Mouser Part No 571-BTH3-19-13-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	12In Stock	£270.68 £215.70 £207.97	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	19	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-17-12-1-C-SE TE Connectivity / Polamco 1: £229.76 50In Stock	Mfr. Part No. BTH3-17-12-1-C-SE Mouser Part No 571-BTH3-17-12-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	50In Stock	£229.76 £216.92 £211.84	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	17	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-21-15-1-C-SE TE Connectivity / Polamco 1: £345.49 49In Stock	Mfr. Part No. BTH3-21-15-1-C-SE Mouser Part No 571-BTH3-21-15-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	49In Stock	£345.49 £280.89	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	21	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-15-10-1-C-SE TE Connectivity / Polamco 1: £251.00 20In Stock	Mfr. Part No. BTH3-15-10-1-C-SE Mouser Part No 571-BTH3-15-10-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	20In Stock	£251.00 £235.61 £220.97	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	15	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-15-10-1-B-SE TE Connectivity / AMP 1: £297.71 46In Stock	Mfr. Part No. BTH3-15-10-1-B-SE Mouser Part No 571-BTH3-15-10-1-BSE	TE Connectivity / AMP	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / AMP te swept elbow backshells	Datasheet	46In Stock	£297.71 £216.84 £209.06	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	15	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-21-15-1-B-SE TE Connectivity / AMP 1: £240.39 25In Stock	Mfr. Part No. BTH3-21-15-1-B-SE Mouser Part No 571-BTH3-21-15-1-BSE	TE Connectivity / AMP	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / AMP te swept elbow backshells	Datasheet	25In Stock	£240.39 £214.85 £207.15	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Band Lock Adapters	90 Deg	21	Cadmium	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-19-13-1-B-SE TE Connectivity / Polamco 1: £257.02 27In Stock	Mfr. Part No. BTH3-19-13-1-B-SE Mouser Part No 571-BTH3-19-13-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	27In Stock	£257.02 £233.79 £229.91	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	19	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-23-17-1-C-SE TE Connectivity / Polamco 1: £249.24 3In Stock	Mfr. Part No. BTH3-23-17-1-C-SE Mouser Part No 571-BTH3-23-17-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	3In Stock	£249.24 £236.28 £218.58	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	23	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-11-06-1-C-SE TE Connectivity / AMP 1: £314.01 2In Stock	Mfr. Part No. BTH3-11-06-1-C-SE Mouser Part No 571-BTH3-11-06-1-CSE	TE Connectivity / AMP	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / AMP te swept elbow backshells	Datasheet	2In Stock	£314.01 £255.06 £239.25	Min.: 1 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg		Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-09-04-1-B-SE TE Connectivity / Polamco 1: £409.18 46Expected 21/05/2027	Mfr. Part No. BTH3-09-04-1-B-SE Mouser Part No 571-BTH3-09-04-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	46Expected 21/05/2027	£409.18 £384.86	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	9	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-09-04-1-C-SE TE Connectivity / Polamco 50: £230.93 Non-Stocked Lead-Time 35 Weeks	Mfr. Part No. BTH3-09-04-1-C-SE Mouser Part No 571-BTH3-09-04-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	Non-Stocked Lead-Time 35 Weeks	£230.93	Min.: 50 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	9	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-13-08-1-C-SE TE Connectivity / Polamco 50: £205.05 Non-Stocked Lead-Time 34 Weeks	Mfr. Part No. BTH3-13-08-1-C-SE Mouser Part No 571-BTH3-13-08-1-CSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	Non-Stocked Lead-Time 34 Weeks	£205.05	Min.: 50 Mult.: 1		MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	13	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-13-08-1-B-SE TE Connectivity / Polamco 50: £241.05 Non-Stocked Lead-Time 34 Weeks	Mfr. Part No. BTH3-13-08-1-B-SE Mouser Part No 571-BTH3-13-08-1-BSE	TE Connectivity / Polamco	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / Polamco te swept elbow backshells	Datasheet	Non-Stocked Lead-Time 34 Weeks	£241.05	Min.: 50 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	13	Electroless Nickel	Aluminum Alloy
Circular MIL Spec Backshells Band Strap Backshell 90 DEG BTH3-17-12-1-B-SE TE Connectivity / AMP 50: £234.34 Non-Stocked Lead-Time 43 Weeks	Mfr. Part No. BTH3-17-12-1-B-SE Mouser Part No 571-BTH3-17-12-1-BSE	TE Connectivity / AMP	Circular MIL Spec Backshells Band Strap Backshell 90 DEG Learn More about TE Connectivity / AMP te swept elbow backshells	Datasheet	Non-Stocked Lead-Time 43 Weeks	£234.34	Min.: 50 Mult.: 1	No	MIL-DTL-38999 III, IV	Strain Relief Backshells	90 Deg	17	Electroless Nickel	Aluminum Alloy

Swept Elbow Backshells

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