The Valve,ball, cataloged under National Stock Number 4820-01-641-3836, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Alloy Valve and Fitting Co Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-641-3836 |
| Primary Part Number | 1" WARREN 6159 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Alloy Valve and Fitting Co Inc |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Valve Size | 1.00 INCHES IN |
| Face to Face Distance | 4.15 INCHES IN |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1" WARREN 6159 | W & O Supply Inc (USA) |
| 1" WARREN 6159 PRIMARY | Warren Alloy Valve and Fitting Co Inc (USA) |
| WARREN-6159 1.00IN | Warren Alloy Valve and Fitting Co Inc (USA) |
| 521-8499849 ITEM NO. V-1 | Naval Sea Systems Command (USA) |
NSN 4820-01-641-3836 is a Valve,ball, manufactured by Warren Alloy Valve and Fitting Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-641-3836 has 4 manufacturer part numbers on file: 1" WARREN 6159 (W & O Supply Inc), 1" WARREN 6159 (Warren Alloy Valve and Fitting Co Inc), WARREN-6159 1.00IN (Warren Alloy Valve and Fitting Co Inc), 521-8499849 ITEM NO. V-1 (Naval Sea Systems Command).
Key specifications for 1" WARREN 6159: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Valve Size: 1.00 INCHES IN; Face to Face Distance: 4.15 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.
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.