The Retainer,disk,valve, cataloged under National Stock Number 4820-01-400-3313, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-400-3313 |
| Primary Part Number | 801-6405407 FIND 15 |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Valve Size for Which Designed | 3.5000 INCHES IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 801-6405407 FIND 15 | Naval Sea Systems Command (USA) |
| 211080157L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211059662L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6404589 ITEM 15L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211059662 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 801-6405407 FIND 15L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 211080157 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 801-6404589 ITEM15 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-400-3313 is a Retainer,disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-400-3313 has 5 manufacturer part numbers on file: 801-6405407 FIND 15 (Naval Sea Systems Command), 211080157L1 (Naval Inventory Control Point Mechanicsburg), 211059662L1 (Naval Inventory Control Point Mechanicsburg), 801-6404589 ITEM 15L1 (Naval Inventory Control Point Mechanicsburg), 211059662 (Huntington Ingalls Inc Div Newport News Shipbuilding).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-633-0959. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6405407 FIND 15: Criticality Code Justification: ZZZY; Valve Size for Which Designed: 3.5000 INCHES IN; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 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.
NSN 4820-01-400-3313 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.