The Screw,adjusting,valve Tappet, cataloged under National Stock Number 2815-00-110-3590, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Dresser, Llc. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-110-3590 |
| Primary Part Number | 73658-E |
| Item Name | Screw,adjusting,valve Tappet |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| End Length | 0.385 INCHES NOMINAL IN |
| Undercut Width | 0.165 INCHES NOMINAL IN |
| Undercut Diameter | 0.320 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Style Designator | SPHERICAL HEAD, UNDERCUT, SLOT DRIVE |
| End Largest Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 1.425 INCHES IN |
| Casehardening Indicator | CASEHARDENED |
| Slot Depth | 0.105 INCHES NOMINAL IN |
| Thread Size | 7/16-14 |
| End Spherical Radius | 0.250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL |
| Slot Width | 0.080 INCHES NOMINAL IN |
| Smallest Diameter | 0.320 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 |
|---|---|
| 73658-E PRIMARY | Dresser, Llc (USA) |
NSN 2815-00-110-3590 is a Screw,adjusting,valve Tappet, manufactured by Dresser, Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-110-3590 has 1 manufacturer part number on file: 73658-E (Dresser, Llc).
Key specifications for 73658-E: End Length: 0.385 INCHES NOMINAL IN; Undercut Width: 0.165 INCHES NOMINAL IN; Undercut Diameter: 0.320 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 15 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.