The Screw,adjusting,valve Tappet, cataloged under National Stock Number 2805-00-962-8689, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2805-00-962-8689 |
| Item Name | Screw,adjusting,valve Tappet |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Width Across Flats | 0.437 INCHES NOMINAL IN |
| End Length | 0.212 INCHES NOMINAL IN |
| Undercut Width | 0.119 INCHES NOMINAL IN |
| Undercut Diameter | 0.312 INCHES NOMINAL IN |
| Thread Series | UN |
| Style Designator | SPHERICAL HEAD, UNDERCUT, WRENCHING FLATS |
| End Largest Diameter | 0.345 INCHES NOMINAL IN |
| Thread Length | 0.762 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 3/8-20 |
| End Spherical Radius | 0.164 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL |
| 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 |
|---|---|
| 2379943 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2379943 | 5/9 Secondary reference General Motors Corp |
| 2379943 | 3/9 Design control — primary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 2805-00-962-8689 is a Screw,adjusting,valve Tappet, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-962-8689: Width Across Flats: 0.437 INCHES NOMINAL IN; End Length: 0.212 INCHES NOMINAL IN; Undercut Width: 0.119 INCHES NOMINAL IN; Undercut Diameter: 0.312 INCHES NOMINAL IN. 14 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.