The Filler Valve,aircraft Oxygen, cataloged under National Stock Number 1660-01-454-2004, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-454-2004 |
| Item Name | Filler Valve,aircraft Oxygen |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1660PL0917529 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| M7891LF-2 | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-7891 | 5/9 Secondary reference U.S. Government activity |
| AN6024-5 | 5/9 Secondary reference U.S. Government activity |
| 1660PL1625912 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5071M | 5/1 Secondary reference U.S. Government activity |
| MIL-DTL-7891 | 4/1 Identification reference U.S. Government activity |
NSN 1660-01-454-2004 is a Filler Valve,aircraft Oxygen, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-454-2004: Special Features: 2.906 IN. LG BY 1.125 IN DIA VALVE O/A; 1 HANDLE 2.937 IN LG BY 1.445 IN DIA O/A BY 0.500 IN THK; 1 PLUG,DUST AND MOISTURE, 0.812 IN. LG BY 0.562 IN DIA BY 0.375 IN. BODY DIA TAPERED TO 0.304 IN. DIA BY 0.272 IN. ID ON BODY END BY 0.136 IN. ID OTHER END IN. 0 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.
NSN 1660-01-454-2004 has DEMIL Code Q. 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.