The Seat,valve, cataloged under National Stock Number 4810-01-170-7886, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4810-01-170-7886 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.109 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Flange Diameter | 0.660 INCHES NOMINAL IN |
| FSC Application Data | SERVOCYLINDER ASSEMBLY,HYDRAULIC |
| Body Outside Diameter | 0.578 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN |
| Seat Radius | 0.023 INCHES NOMINAL IN |
| Under Flange Height | 0.416 INCHES NOMINAL IN |
| Seating Surface Shape | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2771717-101 | 5/9 Secondary reference Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div |
| 2771717-101 | 3/2 Design control — primary reference U.S. Government activity |
| 2771717-101 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-01-170-7886 is a Seat,valve, classified under FSC 4810, Valves, Powered. Status: active.
Key specifications for 4810-01-170-7886: Flange Seat to Disk End Height: 0.109 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Flange Diameter: 0.660 INCHES NOMINAL IN; FSC Application Data: SERVOCYLINDER ASSEMBLY,HYDRAULIC; Body Outside Diameter: 0.578 INCHES NOMINAL IN. 9 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.
NSN 4810-01-170-7886 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.