The Seat,valve, cataloged under National Stock Number 4820-00-923-6853, 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 11 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 | 4820-00-923-6853 |
| Primary Part Number | 894B432PC3 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 1.625 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN |
| Flange Diameter | 4.937 INCHES MINIMUM AND 4.938 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.820 INCHES NOMINAL IN |
| Taper Minor Diameter | 2.042 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE |
| Body Inside Diameter | 2.042 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN |
| Seat Radius | 0.707 INCHES MINIMUM AND 0.717 INCHES MAXIMUM IN |
| Under Flange Height | 1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN |
| Material | COBALT ALLOY FACE |
| 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 |
|---|---|
| 894B432PC3 PRIMARY | General Electric Company (USA) |
NSN 4820-00-923-6853 is a Seat,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-923-6853 has 1 manufacturer part number on file: 894B432PC3 (General Electric Company).
Key specifications for 894B432PC3: Flange Seat to Disk End Height: 1.625 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN; Flange Diameter: 4.937 INCHES MINIMUM AND 4.938 INCHES MAXIMUM IN; Body Outside Diameter: 3.820 INCHES NOMINAL IN; Taper Minor Diameter: 2.042 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN. 11 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.