The Seat,valve, cataloged under National Stock Number 4820-00-435-4535, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-435-4535 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Body Outside Diameter | 2.191 INCHES MINIMUM AND 2.192 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN |
| Material | STEEL COMP 4140 BODY |
| Seat Angle in Deg | 45.000 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 |
| Reference | Meaning |
|---|---|
| R600A331 | 3/9 Design control — primary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
NSN 4820-00-435-4535 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-435-4535: Overall Height: 0.435 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Body Outside Diameter: 2.191 INCHES MINIMUM AND 2.192 INCHES MAXIMUM IN; Style Designator: PLAIN; Body Inside Diameter: 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN. 6 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.