The Seat,valve, cataloged under National Stock Number 4820-00-482-2031, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-482-2031 |
| Primary Part Number | 2702435-3 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.187 INCHES NOMINAL IN |
| Flange Diameter | 0.315 INCHES NOMINAL IN |
| Body Outside Diameter | 0.185 INCHES NOMINAL IN |
| Seal Accommodation Type | RECESSED |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.092 INCHES NOMINAL IN |
| Seat Radius | 0.158 INCHES NOMINAL IN |
| Under Flange Height | 0.433 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| 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 |
|---|---|
| 2702435-3 PRIMARY | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| 2702435-1 | 5/9 Secondary reference Cosmodyne, Llc Dba Cosmodyne Llc |
NSN 4820-00-482-2031 is a Seat,valve, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-482-2031 has 1 manufacturer part number on file: 2702435-3 (Cosmodyne, Llc Dba Cosmodyne Llc).
Key specifications for 2702435-3: Flange Seat to Disk End Height: 0.187 INCHES NOMINAL IN; Flange Diameter: 0.315 INCHES NOMINAL IN; Body Outside Diameter: 0.185 INCHES NOMINAL IN; Seal Accommodation Type: RECESSED. 10 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.