The Stem,fluid Valve, cataloged under National Stock Number 4820-01-343-7407, 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 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-343-7407 |
| Primary Part Number | 211058041L1 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Criticality Code Justification | ZZZY |
| Valve Size for Which Designed | 0.250 INCHES IN |
| Material | TITANIUM |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I 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 |
|---|---|
| 211058041L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6408786 FIND16L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6408786 FIND75L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| DF330646 FIND 16L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 211058041 | 5/1 Secondary reference Naval Sea Systems Command |
| DF330646 FIND 75L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| DF330646 FIND 75 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 801-6408786 FIND 16 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 801-6408786 FIND75 | 5/1 Secondary reference Naval Sea Systems Command |
| DF330646 FIND 16 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| DF330646 FIND 75 | 5/1 Secondary reference Naval Sea Systems Command |
| 211058041 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-343-7407 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-343-7407 has 4 manufacturer part numbers on file: 211058041L1 (Naval Inventory Control Point Mechanicsburg), 801-6408786 FIND16L1 (Naval Inventory Control Point Mechanicsburg), 801-6408786 FIND75L1 (Naval Inventory Control Point Mechanicsburg), DF330646 FIND 16L1 (Naval Inventory Control Point Mechanicsburg).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-526-2223, 4820-01-627-6501. Verify interchangeability with system specifications before substitution.
Key specifications for 211058041L1: Valve Type for Which Designed: BALL; Stem Actuating End Type: THREADED EXTERNALLY; Criticality Code Justification: ZZZY; Valve Size for Which Designed: 0.250 INCHES IN. 6 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 4820-01-343-7407 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.