The Guide,valve Stem, cataloged under National Stock Number 2815-01-591-9620, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Fluid System Components, Inc. Div Fluid Systems Components. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Guide,valve Stem |
| FSC / FSG | 2815 — Diesel Engines and Components (FSG 28) |
| Manufacturers | Oshkosh Defense Llc (CAGE 75Q65); Fluid System Components, Inc. Div Fluid Systems Components (CAGE 1ET59) |
| Parameter | Value |
|---|---|
| NSN | 2815-01-591-9620 |
| Primary Part Number | WS 10W-01-C-N-0 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Fluid System Components, Inc. Div Fluid Systems Components |
| Status | ACTIVE |
| 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 |
|---|---|
| 23KP312 | Oshkosh Defense Llc (USA) |
| WS 10W-01-C-N-0 PRIMARY | Fluid System Components, Inc. Div Fluid Systems Components (USA) |
| Reference | Meaning |
|---|---|
| 23KP312 | 5/9 Secondary reference Oshkosh Corp |
NSN 2815-01-591-9620 is a Guide,valve Stem, manufactured by Fluid System Components, Inc. Div Fluid Systems Components, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-591-9620 has 2 manufacturer part numbers on file: 23KP312 (Oshkosh Defense Llc), WS 10W-01-C-N-0 (Fluid System Components, Inc. Div Fluid Systems Components).
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.