Self-locking coupling nut · Shell 21 · Thread M31×1.0-0.10R · Body dia 41.70 mm · W (olive drab cadmium) · MPN M85049/14-1-21W
AS85049 / M85049 backshells and strain reliefs
Straight, self-locking rotating coupling nut
/14-1 — straight strain relief with self-locking coupling nut
21
M31×1.0-0.10R
41.70 mm
Aluminium alloy
W — cadmium with olive drab chromate
A, B, N (electroless nickel), S, Z per AS85049
Saddle clamp with stainless steel screws
Non-self-locking / self-locking variants available
Non-environmental strain relief (boot not included)
MIL-DTL-38999 Series III and IV, MIL-DTL-5015, MIL-DTL-26482, D38999
Matches shell-size cable entry per AS85049
-55 °C to +175 °C
Non-locking legacy backshells of the same dash number
Amphenol PCD A85049 series, Glenair equivalent dash number
M85049/14-1-21W
| Airoadcon | Amphenol PCD | Glenair | QPL (AS85049) |
|---|---|---|---|
| M85049/14-1-21W | M85049/14-1-21W | M85049/14-1-21W | M85049/14-1-21W |
M85049 backshells are the qualified accessory family for US military circular connectors — they terminate the cable shield, provide strain relief and set the cable exit angle. The /14-1 slash sheet is the self-locking straight version: a rotating coupling nut with a ratchet that resists loosening under vibration, plus a saddle clamp for the cable jacket. It is specified wherever a D38999 Series III/IV connector is used in a high-vibration zone and the harness must not back off — aerospace structural runs, engine-adjacent looms, rail and off-highway vehicle harnesses.
Need M85049/14-1-21W?
Airoadcon supplies QPL-pattern M85049 backshells — free samples, 4-week lead time. Multiple finishes and shell sizes in stock.
Request Quote / Sample