The Seat,valve, cataloged under National Stock Number 4820-01-176-1085, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-176-1085 |
| Primary Part Number | 429B244-002 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 1.125 INCHES NOMINAL IN |
| Flange Diameter | 3.500 INCHES NOMINAL IN |
| Body Outside Diameter | 2.875 INCHES NOMINAL IN |
| Hardness Rating | NAVY 46 R 5 LOCATION NOT OTHERWISE SPECIFIED |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 1.708 INCHES NOMINAL IN |
| Seat Radius | 0.625 INCHES NOMINAL IN |
| Under Flange Height | 1.812 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 32.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 429B244-002 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 3216801 | D/9 Drawing number reference only U.S. Government activity |
| 429B244 | D/9 Drawing number reference only General Electric Company |
NSN 4820-01-176-1085 is a Seat,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-176-1085 has 1 manufacturer part number on file: 429B244-002 (General Electric Company).
Key specifications for 429B244-002: Flange Seat to Disk End Height: 1.125 INCHES NOMINAL IN; Flange Diameter: 3.500 INCHES NOMINAL IN; Body Outside Diameter: 2.875 INCHES NOMINAL IN; Hardness Rating: NAVY 46 R 5 LOCATION NOT OTHERWISE SPECIFIED. 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.