The Valve,ball, cataloged under National Stock Number 4820-01-058-3401, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tyco Fire Products Lp. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-058-3401 |
| Primary Part Number | V2975REVCASSYA |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | STEEL BODY |
| 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 |
|---|---|
| V2975 ASSY A | Portland Valve Llc (USA) |
| V2975REVCASSYA PRIMARY | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| V-2975 | D/9 Drawing number reference only Tyco Fire Products Lp |
NSN 4820-01-058-3401 is a Valve,ball, manufactured by Tyco Fire Products Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-058-3401 has 2 manufacturer part numbers on file: V2975 ASSY A (Portland Valve Llc), V2975REVCASSYA (Tyco Fire Products Lp).
Key specifications for V2975REVCASSYA: Style Designator: STRAIGHT THRU; Material Document and Classification: QQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: VALVE SEALS FOR USE WITH FLUID PER MIL-H-19457 PHOSPHATE ESTER BASE ON 3/4 STYLE "B" VALVE. 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.