The Valve,fuel System, cataloged under National Stock Number 2915-01-665-4273, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Thomas Instrument, Incorporated. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Valve,fuel System |
| FSC / FSG | 2915 — Engine Fuel System Components, Aircraft and Missile Prime Movers (FSG 29) |
| Manufacturers | Thomas Instrument, Incorporated (CAGE 5H860); United Dynamics, Inc (CAGE 0XWR4); Texas Aerospace Services Inc (CAGE 29242) |
| Parameter | Value |
|---|---|
| NSN | 2915-01-665-4273 |
| Primary Part Number | 39-21408-1 |
| Item Name | Valve,fuel System |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| 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 |
|---|---|
| 39-21408-1 | Thomas Instrument, Incorporated (USA) |
| 39-21408-1 | United Dynamics, Inc (USA) |
| 39-21408-1 | Texas Aerospace Services Inc (USA) |
| Reference | Meaning |
|---|---|
| 39-21408-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2915-01-665-4273 is a Valve,fuel System, manufactured by Thomas Instrument, Incorporated, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-01-665-4273 has 3 manufacturer part numbers on file: 39-21408-1 (Thomas Instrument, Incorporated), 39-21408-1 (United Dynamics, Inc), 39-21408-1 (Texas Aerospace Services Inc).
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.