The Expander,valve, cataloged under National Stock Number 2995-01-166-1137, is classified within Federal Supply Class 2995 (Miscellaneous Engine Accessories, Aircraft) of the Engine Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 2995-01-166-1137 |
| Item Name | Expander,valve |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Status | ACTIVE |
| FSC Application Data | MISCELLANEOUS ENGINE ACCESSORIES,AIRCRAFT |
| 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 |
|---|---|
| 18548 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2995-01-166-1137 is a Expander,valve, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 3040-01-306-1065, 6515-01-435-3874, 4130-01-459-2379. Verify interchangeability with system specifications before substitution.
Key specifications for 2995-01-166-1137: FSC Application Data: MISCELLANEOUS ENGINE ACCESSORIES,AIRCRAFT; End Item Identification: PART OF PISTON ASSY,VALVE FSCM 99643 PN 18261 NSN 2995009099938,U/O BODY ASSY,VALVE FSCM 99643 PN 18119 NSN 2995009099943,E/I ANTI-ICING VALVE PN 25800-3 NSN 2995000707372. 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 2995-01-166-1137 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.