The Seat,valve, cataloged under National Stock Number 4820-01-006-6236, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-006-6236 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.625 INCHES NOMINAL IN |
| Flange Diameter | 5.240 INCHES MINIMUM AND 5.245 INCHES MAXIMUM IN |
| Body Outside Diameter | 4.502 INCHES MINIMUM AND 4.503 INCHES MAXIMUM IN |
| Seal Accommodation Type | GROOVED |
| Taper Minor Diameter | 3.500 INCHES MINIMUM AND 3.503 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | MIL-N-6710 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Taper Major Diameter | 4.000 INCHES NOMINAL IN |
| Body Inside Diameter | 3.500 INCHES MINIMUM AND 3.503 INCHES MAXIMUM IN |
| Taper Length | 0.875 INCHES NOMINAL IN |
| Under Flange Height | 0.875 INCHES NOMINAL IN |
| Material | NICKEL ALLOY BODY |
| Material | CHROMIUM ALLOY SEAT |
| Seat Angle in Deg | 30.000 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 |
|---|---|
| NL1168-1 | 3/9 Design control — primary reference U.S. Government activity |
| NL1168 | 5/9 Secondary reference U.S. Government activity |
| C1N-NL1168 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-006-6236 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-006-6236: Flange Seat to Disk End Height: 0.625 INCHES NOMINAL IN; Flange Diameter: 5.240 INCHES MINIMUM AND 5.245 INCHES MAXIMUM IN; Body Outside Diameter: 4.502 INCHES MINIMUM AND 4.503 INCHES MAXIMUM IN; Seal Accommodation Type: GROOVED. 16 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.