The Seat,valve, cataloged under National Stock Number 4820-01-523-0835, 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 3 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-523-0835 |
| Primary Part Number | 801-6405342 FIND 11CP |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Material | PLASTIC OVERALL |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| DF330707 ITEM 11CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 211081997CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6405342 FIND 11CP PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 801-6405342 FIND 11 | 5/1 Secondary reference Naval Sea Systems Command |
| 211081997 | 5/1 Secondary reference U.S. Government activity |
| DF330707 ITEM 11 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-523-0835 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-523-0835 has 3 manufacturer part numbers on file: DF330707 ITEM 11CP (Naval Inventory Control Point Mechanicsburg), 211081997CP (Naval Inventory Control Point Mechanicsburg), 801-6405342 FIND 11CP (Naval Inventory Control Point Mechanicsburg).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-537-8438, 4820-01-653-8363. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6405342 FIND 11CP: Criticality Code Justification: FEAT; Special Features: ITEM IS OXYGEN CLEAN; End Item Identification: COM. CONSOLE; Material: PLASTIC OVERALL. 3 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.