The Insert,engine Valve Seat, cataloged under National Stock Number 2815-00-725-4573, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cummins Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2815-00-725-4573 |
| Primary Part Number | 70843 |
| Item Name | Insert,engine Valve Seat |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 1.430 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.312 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 1.000 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 |
| Part Number | Manufacturer |
|---|---|
| 70843 PRIMARY | Cummins Inc. (USA) |
| IS292H | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| 70843 | 5/9 Secondary reference La Gary Co |
| MILE11276 | 4/1 Identification reference U.S. Government activity |
| QPL11276 | 5/1 Secondary reference U.S. Government activity |
NSN 2815-00-725-4573 is a Insert,engine Valve Seat, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-725-4573 has 2 manufacturer part numbers on file: 70843 (Cummins Inc.), IS292H (Trw Inc Trw Intl Trade Government Sales Dept).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-422-0697. Verify interchangeability with system specifications before substitution.
Key specifications for 70843: Overall Height: 0.156 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN; Body Outside Diameter: 1.430 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 1.312 INCHES NOMINAL IN. 6 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.