The Bayonet,oxygen Mask, cataloged under National Stock Number 1660-01-246-8637, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Transaero, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-246-8637 |
| Primary Part Number | TA-3665-IR |
| Item Name | Bayonet,oxygen Mask |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Transaero, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 3 PIN BAYONET; 2 FOR L & R SIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TA-3665-2R | Transaero, Inc. (USA) |
| TA-3665-IR PRIMARY | Transaero, Inc. (USA) |
| 1660-12-083-7392 | Ministerie Van Defensie Clsk (NLD) |
| Reference | Meaning |
|---|---|
| TA-3665-IR | 5/9 Secondary reference Bhv Aviation Consultants Gmbh |
NSN 1660-01-246-8637 is a Bayonet,oxygen Mask, manufactured by Transaero, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-246-8637 has 3 manufacturer part numbers on file: TA-3665-2R (Transaero, Inc.), TA-3665-IR (Transaero, Inc.), 1660-12-083-7392 (Ministerie Van Defensie Clsk).
Key specifications for TA-3665-IR: General Characteristics Item Description: 3 PIN BAYONET; 2 FOR L & R SIDE; End Item Identification: USED ON OXYGEN MASK MBU-5/P. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1660-01-246-8637 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.