The Filler Valve,aircraft Oxygen, cataloged under National Stock Number 1660-01-734-0236, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-734-0236 |
| Item Name | Filler Valve,aircraft Oxygen |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 CAP-CHAIN |
| Filter Type | SINTERED BRONZE FILTER 100 MICRONS |
| Thread Type | SZ0.438-20UNJF-3A A |
| Specification/standard Data | 81349-MIL-DTL-789H GOVERNMENT SPECIFICATION |
| Operating Temp Rating | 165.0 FAHRENHEIT MAXIMUM DEGF |
| Media for Which Designed | OXYGEN, LIQUID |
| 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 |
|---|---|
| M7891LM-4 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-7891H | 4/1 Identification reference U.S. Government activity |
NSN 1660-01-734-0236 is a Filler Valve,aircraft Oxygen, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-734-0236: Furnished Items and Quantity: 1 CAP-CHAIN; Filter Type: SINTERED BRONZE FILTER 100 MICRONS; Thread Type: SZ0.438-20UNJF-3A A; Specification/standard Data: 81349-MIL-DTL-789H GOVERNMENT SPECIFICATION. 6 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 1660-01-734-0236 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.