The Piston,relief Valve, cataloged under National Stock Number 2915-00-449-2173, 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 Pti Technologies Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2915-00-449-2173 |
| Primary Part Number | 30850 |
| Item Name | Piston,relief Valve |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Pti Technologies Inc. |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 30850 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 30850 | 5/9 Secondary reference Arvinmeritor Inc |
NSN 2915-00-449-2173 is a Piston,relief Valve, manufactured by Pti Technologies Inc., classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-449-2173 has 1 manufacturer part number on file: 30850 (Pti Technologies Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 2990-01-613-0314, 5610-01-682-3425. Verify interchangeability with system specifications before substitution.
Key specifications for 30850: End Item Identification: FILTER PART NO. 61634-1,ENGINE,AIRCRAFT,MODEL T56. 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 2915-00-449-2173 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.