The Seat,valve, cataloged under National Stock Number 4810-01-086-9970, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-086-9970 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.405 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Flange Diameter | 1.646 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.000 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Body Stepped Inside Diameter | 0.176 INCHES MINIMUM AND 0.181 INCHES MAXIMUM FIRST STEP IN |
| Body Stepped Inside Diameter | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM SECOND STEP IN |
| Body Stepped Inside Diameter | 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM THIRD STEP IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Under Flange Height | 0.297 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| D5-9-161 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-086-9970 is a Seat,valve, classified under FSC 4810, Valves, Powered. Status: active.
Key specifications for 4810-01-086-9970: Flange Seat to Disk End Height: 0.405 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Flange Diameter: 1.646 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN; Body Outside Diameter: 1.000 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN; Body Stepped Inside Diameter: 0.176 INCHES MINIMUM AND 0.181 INCHES MAXIMUM FIRST STEP 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.