The Valve,ball, cataloged under National Stock Number 4820-01-486-3823, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-486-3823 |
| Primary Part Number | 1MMP4 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Material | ZINC FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 1MMP4 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| B6002-3/4 INCH | 5/9 Secondary reference Watts Regulator Company |
| B6002 | 5/9 Secondary reference Watts Regulator Company |
NSN 4820-01-486-3823 is a Valve,ball, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-486-3823 has 1 manufacturer part number on file: 1MMP4 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 1MMP4: Special Features: SIZES 1/4"AND 1/2"(8&15MM) HAVE DURAFILL SEATS: SIZED 3/4"AND 1" HAVE UNISEAL SEATS. ELECTROLESS NICKEL PLATED BRASS BALL IS STANDARD FOR SMOOTH AND DURABLE FINISH MM; End Item Identification: 7360-01-473-3408; Material: ZINC FLOW CONTROL DEVICE. 1 specification is 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.