The Stem,needle Valve, cataloged under National Stock Number 4820-01-523-0847, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-523-0847 |
| Primary Part Number | 801-6405342 FIND 42CP |
| Item Name | Stem,needle Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Largest Outside Diameter | 0.861 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 801-6405342 FIND 42CP PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| 211041870CP | Naval Inventory Control Point Mechanicsburg (USA) |
| DF330707 ITEM 42CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| DF330707 ITEM 42 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 801-6405342 FIND 42 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4820-01-523-0847 is a Stem,needle Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-523-0847 has 3 manufacturer part numbers on file: 801-6405342 FIND 42CP (Naval Inventory Control Point Mechanicsburg), 211041870CP (Naval Inventory Control Point Mechanicsburg), DF330707 ITEM 42CP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-537-8429. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6405342 FIND 42CP: Largest Outside Diameter: 0.861 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Overall Length: 4.040 INCHES NOMINAL IN; Special Features: ITEM IS " OXYGEN CLEAN ". 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.