The Valve,ball, cataloged under National Stock Number 4820-01-137-4582, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Newman Machine Co Inc Dba Newman-Whitney. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-137-4582 |
| Primary Part Number | 2285-299 ASSEMBLY AT |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Newman Machine Co Inc Dba Newman-Whitney |
| Status | ACTIVE |
| 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 |
|---|---|
| 2285-299 ASSEMBLY AT PRIMARY | Newman Machine Co Inc Dba Newman-Whitney (USA) |
| 2285-299 ASSY AT PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 2285-299 ASSY AT PRIMARY | Jarecki Industries Ltd (USA) |
| 2285-299 ASSY AT PRIMARY | Derbyshire Machine & Tool Co (USA) |
| 2285-299 ASSY AT PRIMARY | Yankee Machine Inc (USA) |
| 2285-299 ASSY AT PRIMARY | Portland Valve Llc (USA) |
NSN 4820-01-137-4582 is a Valve,ball, manufactured by Newman Machine Co Inc Dba Newman-Whitney, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-137-4582 has 6 manufacturer part numbers on file: 2285-299 ASSEMBLY AT (Newman Machine Co Inc Dba Newman-Whitney), 2285-299 ASSY AT (Huntington Ingalls Inc Div Newport News Shipbuilding), 2285-299 ASSY AT (Jarecki Industries Ltd), 2285-299 ASSY AT (Derbyshire Machine & Tool Co), 2285-299 ASSY AT (Yankee Machine Inc) and 1 more.
Key specifications for 2285-299 ASSEMBLY AT: End Item Identification: VALVE B 500 IPS PSI FLGE COP NI. 0 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 4820-01-137-4582 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.