The Adapter,male,stem,valve, cataloged under National Stock Number 4810-01-074-7977, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-074-7977 |
| Primary Part Number | 810-4384539 PIECE 18 |
| Item Name | Adapter,male,stem,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE,QQ-C-390,ALLOY E7,TYPE 1 |
| 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 |
|---|---|
| 810-4384539 PIECE 18 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 810-4384539 PIECE 18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-074-7977 is a Adapter,male,stem,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-074-7977 has 1 manufacturer part number on file: 810-4384539 PIECE 18 (Naval Sea Systems Command).
Key specifications for 810-4384539 PIECE 18: General Characteristics Item Description: BRONZE,QQ-C-390,ALLOY E7,TYPE 1; End Item Identification: NAVAL SEA SYSTEMS COMMAND,12 IN. SEA WATER HULL AND BACK-UP VALVE,DWG NO. 810-4384539 IN. 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.
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.