The Seat,valve, cataloged under National Stock Number 4820-00-756-9626, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-756-9626 |
| Primary Part Number | 870B344-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Body Outside Diameter | 6.000 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Material Document and Classification | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Body Inside Diameter | 3.875 INCHES MINIMUM AND 3.885 INCHES MAXIMUM IN |
| Seat Radius | 1.344 INCHES NOMINAL IN |
| Material | COBALT ALLOY SEAT |
| Seating Surface Shape | RADIAL |
| 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 |
|---|---|
| 870B344-1 PRIMARY | General Electric Company (USA) |
| 356C601PC1 | General Electric Company (USA) |
| 870B344-1 | General Electric Company (USA) |
NSN 4820-00-756-9626 is a Seat,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-756-9626 has 3 manufacturer part numbers on file: 870B344-1 (General Electric Company), 356C601PC1 (General Electric Company), 870B344-1 (General Electric Company).
Key specifications for 870B344-1: Overall Height: 3.500 INCHES NOMINAL IN; Body Outside Diameter: 6.000 INCHES MINIMUM AND 6.001 INCHES MAXIMUM IN; Style Designator: PLAIN; Material Document and Classification: MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT. 7 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.