The Insert,engine Valve Seat, cataloged under National Stock Number 2815-01-522-4831, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Insert,engine Valve Seat |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Fairbanks Morse, Llc (CAGE 7PZX0) |
| Parameter | Value |
|---|---|
| NSN | 2815-01-522-4831 |
| Primary Part Number | P417494 |
| Item Name | Insert,engine Valve Seat |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.320 INCHES NOMINAL IN |
| Flange Diameter | 2.520 INCHES NOMINAL IN |
| Style Designator | THREADED FLANGED |
| Under Flange Height | 0.630 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 |
| Part Number | Manufacturer |
|---|---|
| P417494 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| P417494 | 5/9 Secondary reference U.S. Government activity |
NSN 2815-01-522-4831 is a Insert,engine Valve Seat, manufactured by Fairbanks Morse, Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-522-4831 has 1 manufacturer part number on file: P417494 (Fairbanks Morse, Llc).
Key specifications for P417494: Flange Seat to Disk End Height: 0.320 INCHES NOMINAL IN; Flange Diameter: 2.520 INCHES NOMINAL IN; Style Designator: THREADED FLANGED; Special Features: SEAT JACKSCREW ( COUNTER WEIGHT GR NUMBER 82 ). 4 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.