MIL-DTL-38999 Series II · MS27473 box mount receptacle · Shell 22 · Arrangement 55 · Finish B · Pin contacts
MIL-DTL-38999 Series II
MS27473 - box mount receptacle
22
55
55 x #20
Pin (male)
B - olive drab cadmium over conductive plating
Normal
Low-profile bayonet (not scoop-proof)
Crimp, rear release
-65°C to +200°C
Aluminium alloy
250 mating cycles minimum
Space-constrained avionics and instrument panels
QPL
Series II is the low-profile member of the 38999 family. Its bayonet coupling is deliberately shortened, which saves space in the connector's axial direction but costs the scoop-proof feature and halves the rated durability to 250 mating cycles. Where the connector is installed in a shallow instrument bay and is not routinely unmated, that trade is accepted. Arrangement 55 in shell 22 gives 55 size-20 contacts, a dense signal interface.
| Airoadcon | Equivalent source 1 | Equivalent source 2 | Equivalent source 3 |
|---|---|---|---|
| Airoadcon / AVIC | MS27473T22B55P | ||
| Amphenol | MS27473T22B55P | ||
| ITT Cannon | KJA1T22B55P | ||
| Souriau | 8LT122B55PN |
Specifying Series II is a deliberate acceptance of a lower durability rating in exchange for a shorter connector. Because Series I, II and III do not intermate with one another, the choice is fixed for the life of the equipment — a Series II receptacle will only accept a Series II plug. Airoadcon supplies all three series and will confirm interchangeability against a mating part before quoting.
Need MS27473T22B55P?
Cross-brand compatible. Free samples available. 4-week lead time on standard configurations.
Email: info@airoadcon.com | Phone: +86-189-9192-7716
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