The Seat,valve, cataloged under National Stock Number 4820-01-696-4104, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-696-4104 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 801-6758076-FIND NO-B6 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 801-6758076-FIND NO-B6Q3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 2643-820-23-FINDQ3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 8016758076 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2643-820-23-FIND | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-696-4104 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-696-4239, 5305-01-697-0829, 5310-01-697-0835. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-696-4104: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: VALVE, BALL-TOPLOADED LINE .75 AND 1.00 INCH SW NIMOCR IN; Reference Number Differentiating Characteristics: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL. 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.