The Piston,valve, cataloged under National Stock Number 4810-01-497-2443, 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 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-497-2443 |
| Primary Part Number | 563-7409379-77 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Document and Classification | ASTM-150 ALY-C63200 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 563-7409379-77 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| B552-3200 | D/9 Drawing number reference only U.S. Government activity |
| B552-3200-77 | 5/2 Secondary reference U.S. Government activity |
| 7409379 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4810-01-497-2443 is a Piston,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-497-2443 has 1 manufacturer part number on file: 563-7409379-77 (Naval Sea Systems Command).
Key specifications for 563-7409379-77: Material Document and Classification: ASTM-150 ALY-C63200 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 23.930 INCHES NOMINAL IN; Special Features: NHA MBT NO.6 HYDRAULIC OPERATOR ASSEMBLY; End Item Identification: SEAWOLF CLASS SSN 23. 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.
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.