The Mask,oxygen, cataloged under National Stock Number 1660-01-641-9172, 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 Amron International Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-641-9172 |
| Primary Part Number | 450M |
| Item Name | Mask,oxygen |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Amron International Inc |
| Status | ACTIVE |
| Design Type | MOUTH AND NOSE |
| Oxygen System Type | PRESSURE DEMAND |
| Headband | PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 450M PRIMARY | Amron International Inc (USA) |
NSN 1660-01-641-9172 is a Mask,oxygen, manufactured by Amron International Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-641-9172 has 1 manufacturer part number on file: 450M (Amron International Inc).
1 possible match (shared part number, not a government interchangeability claim): 3615-01-700-7082. Verify interchangeability with system specifications before substitution.
Key specifications for 450M: Design Type: MOUTH AND NOSE; Oxygen System Type: PRESSURE DEMAND; Headband: PROVIDED; Part Name Assigned by Controlling Agency: OVERBOARD DUMP CHAMBER BIBS MASK. 3 specifications are 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.
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.