The Seat,valve, cataloged under National Stock Number 4820-01-653-8363, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-653-8363 |
| Primary Part Number | 211081997D0 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 211081997D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| DF330707 FIND 11D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6405342 FIND 11D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 801-6405342 FIND 11 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 211081997 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-653-8363 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-653-8363 has 3 manufacturer part numbers on file: 211081997D0 (Naval Inventory Control Point Mechanicsburg), DF330707 FIND 11D0 (Naval Inventory Control Point Mechanicsburg), 801-6405342 FIND 11D0 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 211081997D0: Criticality Code Justification: FEAT; Special Features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS. 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.