The Piston,valve,inseparable Assy, cataloged under National Stock Number 2835-01-053-7801, is classified within Federal Supply Class 2835 (Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components) of the Engines, Turbines, and Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2835-01-053-7801 |
| Item Name | Piston,valve,inseparable Assy |
| FSC / FSG | 2835 / 28 — Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components |
| Status | ACTIVE |
| FSC Application Data | GEARBOX,ACCESSORY DRIVE |
| General Characteristics Item Description | ASSY CONSISTS OF 1 RING,RETAININGP/N 5900985,1 PISTON,VALVE P/N 5002739-1;DIM. O/A 0.849 IN. LG,0.570 MAX. 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 |
| Reference | Meaning |
|---|---|
| 5002739 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2835-01-053-7801 is a Piston,valve,inseparable Assy, classified under FSC 2835, Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5995-01-245-7084. Verify interchangeability with system specifications before substitution.
Key specifications for 2835-01-053-7801: FSC Application Data: GEARBOX,ACCESSORY DRIVE; General Characteristics Item Description: ASSY CONSISTS OF 1 RING,RETAININGP/N 5900985,1 PISTON,VALVE P/N 5002739-1;DIM. O/A 0.849 IN. LG,0.570 MAX. DIA IN; End Item Identification: F-16 ACFT. 2 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 2835-01-053-7801 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.