The Stem,needle Valve, cataloged under National Stock Number 4820-01-428-8792, 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 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-428-8792 |
| Primary Part Number | 210101848 |
| Item Name | Stem,needle Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Largest Outside Diameter | 0.750 INCHES NOMINAL IN |
| Stem Actuating End Type | HEXAGON MALE |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Material | COPPER ALLOY 630 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 801-6405539-13-7 | Naval Sea Systems Command (USA) |
| 210101848 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF2300-4423 FN 13-7 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6405539 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-428-8792 is a Stem,needle Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-8792 has 2 manufacturer part numbers on file: 801-6405539-13-7 (Naval Sea Systems Command), 210101848 (Naval Sea Systems Command).
Key specifications for 210101848: Largest Outside Diameter: 0.750 INCHES NOMINAL IN; Stem Actuating End Type: HEXAGON MALE; Overall Length: 2.590 INCHES NOMINAL IN; Valve Size for Which Designed: 0.500 INCHES IN. 4 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 4820-01-428-8792 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.