The Pilot,valve Seat Refacing, cataloged under National Stock Number 4910-00-072-1101, is classified within Federal Supply Class 4910 (Motor Vehicle Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4910-00-072-1101 |
| Item Name | Pilot,valve Seat Refacing |
| FSC / FSG | 4910 / 49 — Motor Vehicle Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Design Type | SOLID |
| Upper End Diameter | 0.499 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN |
| Lower End Length | 2.500 INCHES NOMINAL IN |
| Size | 0.6208 INCHES MINIMUM AND 0.6213 INCHES MAXIMUM IN |
| Upper End Length | 2.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| ST66-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4910-00-072-1101 is a Pilot,valve Seat Refacing, classified under FSC 4910, Motor Vehicle Maintenance and Repair Shop Specialized Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3460-00-999-1173. Verify interchangeability with system specifications before substitution.
Key specifications for 4910-00-072-1101: Design Type: SOLID; Upper End Diameter: 0.499 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN; Lower End Length: 2.500 INCHES NOMINAL IN; Size: 0.6208 INCHES MINIMUM AND 0.6213 INCHES MAXIMUM IN. 5 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.