The Disk,valve, cataloged under National Stock Number 4820-01-159-3457, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-159-3457 |
| Primary Part Number | 876-C |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Shank Diameter | 1.250 INCHES NOMINAL IN |
| Flange Diameter | 1.484 INCHES NOMINAL IN |
| Inside Depth | 1.500 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Seat Angle | 30.0 DEGREES NOMINAL |
| Inside Diameter | 0.906 INCHES NOMINAL IN |
| Under Flange Height | 0.312 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 876-C PRIMARY | Flowserve Inc (USA) |
NSN 4820-01-159-3457 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-159-3457 has 1 manufacturer part number on file: 876-C (Flowserve Inc).
Key specifications for 876-C: Shank Diameter: 1.250 INCHES NOMINAL IN; Flange Diameter: 1.484 INCHES NOMINAL IN; Overall Height: 1.953 INCHES NOMINAL IN; Inside Depth: 1.500 INCHES NOMINAL IN. 8 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.