The Valve,ball, cataloged under National Stock Number 4820-01-561-6961, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pierce Manufacturing Inc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-561-6961 |
| Primary Part Number | 1660261 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pierce Manufacturing Inc |
| Status | ACTIVE |
| Supplementary Features | THD END, RTFE SEATS, MOUNTED TO A SPRING RETURN CRAND ACTUATOR |
| Valve Size | 0.500 INCHES IN |
| Material | STEEL COMP 316 OVERALL |
| Valve Operation Method | AIR |
| 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 |
|---|---|
| 1660261 | Pierce Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 1/2 DM240-CS006 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-561-6961 is a Valve,ball, manufactured by Pierce Manufacturing Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-561-6961 has 1 manufacturer part number on file: 1660261 (Pierce Manufacturing Inc).
Key specifications for 1660261: Supplementary Features: THD END, RTFE SEATS, MOUNTED TO A SPRING RETURN CRAND ACTUATOR; Valve Size: 0.500 INCHES IN; Part Name Assigned by Controlling Agency: VALVE BALL, 0.50 IN, AIR ACTUATED IN; End Item Identification: 2320-01-528-6294, MOBILE WATER TANK/TACTICAL FIRE FIGHTING TRUCK. 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.
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.