The Piston,valve, cataloged under National Stock Number 4810-01-515-9510, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-515-9510 |
| Primary Part Number | 5489361-6 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 1.614 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Features Provided | THREADED |
| Valve Design Control Activity | 53711 |
| Material | ALUMINUM ALLOY AND COPPER ALLOY AND NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
NSN 4810-01-515-9510 is a Piston,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-515-9510 has 2 manufacturer part numbers on file: L8831304 (Sje Inc. Dba San Juan Engineering & Mfg Co), 5489361-6 (Naval Sea Systems Command).
Key specifications for 5489361-6: Outside Diameter: 1.614 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Overall Length: 3.440 INCHES NOMINAL IN; Features Provided: THREADED. 5 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.
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.