The Valve,ball, cataloged under National Stock Number 4820-01-641-9872, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Legend Valve and Fitting Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,ball |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Accutemp Products Inc (CAGE 0ZYB8); Legend Valve and Fitting Inc (CAGE 1BXJ2) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-641-9872 |
| Primary Part Number | T/S-1001 NO LEAD |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Legend Valve and Fitting Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| AT1A-2650 REV M ITEM 35 | Accutemp Products Inc (USA) |
| T/S-1001 NO LEAD PRIMARY | Legend Valve and Fitting Inc (USA) |
| AT1P-2239-1 PRIMARY | Accutemp Products Inc (USA) |
| Reference | Meaning |
|---|---|
| AT1P-2239 | D/9 Drawing number reference only Accutemp Products Inc |
NSN 4820-01-641-9872 is a Valve,ball, manufactured by Legend Valve and Fitting Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-641-9872 has 3 manufacturer part numbers on file: AT1A-2650 REV M ITEM 35 (Accutemp Products Inc), T/S-1001 NO LEAD (Legend Valve and Fitting Inc), AT1P-2239-1 (Accutemp Products Inc).
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.