The Guide,valve Stem, cataloged under National Stock Number 2815-01-265-3258, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Mark Industries. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Guide,valve Stem |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Mark Industries (CAGE 60178) |
| Parameter | Value |
|---|---|
| NSN | 2815-01-265-3258 |
| Primary Part Number | 201-30181 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Mark Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 201-30181 | Mark Industries (USA) |
| Reference | Meaning |
|---|---|
| 20130181 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2815-01-265-3258 is a Guide,valve Stem, manufactured by Mark Industries, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-265-3258 has 1 manufacturer part number on file: 201-30181 (Mark Industries).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-289-1457. Verify interchangeability with system specifications before substitution.
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.