The Orifice,fuel Pump, cataloged under National Stock Number 2915-00-786-0655, 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 Triumph Engine Control Systems Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-00-786-0655 |
| Primary Part Number | 21955 |
| Item Name | Orifice,fuel Pump |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,QQ-S-00763,CLASS 416,COND T,PASSIVATED FINISH,0.4995 IN. MIN,0.4997 IN. MAX OD,0.059 IN. MIN,0.060 IN. MAX THK,0.022 IN. MIN,0.032 IN. MAX APERATURE DIA IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 21955 PRIMARY | Triumph Engine Control Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 21955 | 3/9 Design control — primary reference U.S. Government activity |
NSN 2915-00-786-0655 is a Orifice,fuel Pump, manufactured by Triumph Engine Control Systems Llc, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-786-0655 has 1 manufacturer part number on file: 21955 (Triumph Engine Control Systems Llc).
3 possible matches (shared part number, not a government interchangeability claim): 5961-01-098-2937, 6640-01-479-2204, 5961-01-492-5492. Verify interchangeability with system specifications before substitution.
Key specifications for 21955: General Characteristics Item Description: CRES,QQ-S-00763,CLASS 416,COND T,PASSIVATED FINISH,0.4995 IN. MIN,0.4997 IN. MAX OD,0.059 IN. MIN,0.060 IN. MAX THK,0.022 IN. MIN,0.032 IN. MAX APERATURE DIA IN. 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 2915-00-786-0655 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.