The Piston,valve, cataloged under National Stock Number 1720-00-949-8948, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is U.s.a. Spares Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Piston,valve |
| FSC / FSG | 1720 — Aircraft Launching Equipment (FSG 17) |
| Manufacturers | U.s.a. Spares Inc. (CAGE 1UF60) |
| Parameter | Value |
|---|---|
| NSN | 1720-00-949-8948 |
| Primary Part Number | 17-32286-1 |
| Item Name | Piston,valve |
| FSC / FSG | 1720 / 17 — Aircraft Launching Equipment |
| Manufacturer | U.s.a. Spares 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 | S |
| Part Number | Manufacturer |
|---|---|
| 17-32286-1 | U.s.a. Spares Inc. (USA) |
| Reference | Meaning |
|---|---|
| 17-32286-1 | 3/2 Design control — primary reference U.S. Government activity |
| 17-32286 | 5/9 Secondary reference Wellman Dynamics Machining and Assembly, Inc. |
| 17-32286-1 | 5/9 Secondary reference Fetzer Woodward, Llc Dba Valdez Machining |
NSN 1720-00-949-8948 is a Piston,valve, manufactured by U.s.a. Spares Inc., classified under FSC 1720, Aircraft Launching Equipment. Status: active.
NSN 1720-00-949-8948 has 1 manufacturer part number on file: 17-32286-1 (U.s.a. Spares Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-608-8131. Verify interchangeability with system specifications before substitution.
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 1720-00-949-8948 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.