The Seal Ring,threaded Internally, cataloged under National Stock Number 2915-00-074-0423, 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. 2 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 | 2915-00-074-0423 |
| Primary Part Number | 74958 |
| Item Name | Seal Ring,threaded Internally |
| 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 | NITRIDING STEEL AMS6470,ROCKWELL 15N 92 MIN,1.48 IN. DIA ONE ENG,0.940 IN. DIA OTHER END,0.671 IN. LG 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 |
|---|---|
| 74958 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 2915-00-074-0423 is a Seal Ring,threaded Internally, manufactured by Triumph Engine Control Systems Llc, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-074-0423 has 1 manufacturer part number on file: 74958 (Triumph Engine Control Systems Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5955-00-249-1083, 1730-01-656-7619. Verify interchangeability with system specifications before substitution.
Key specifications for 74958: General Characteristics Item Description: NITRIDING STEEL AMS6470,ROCKWELL 15N 92 MIN,1.48 IN. DIA ONE ENG,0.940 IN. DIA OTHER END,0.671 IN. LG IN; End Item Identification: FUEL PUMP P/N 9459A9. 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 2915-00-074-0423 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.