The Guide,valve Stem, cataloged under National Stock Number 2815-01-180-0798, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-180-0798 |
| Primary Part Number | P12615021 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Material Document and Classification | ASTM A48 ASSN STD SINGLE MATERIAL RESPONSE |
| Bore Counterbore | INCLUDED |
| Counterbore Depth | 2.303 INCHES NOMINAL AND 2.795 INCHES NOMINAL IN |
| Counterbore Location | AA END AND BB END |
| Counterbore Diameter | 1.181 INCHES NOMINAL IN |
| Bore Diameter | 0.9610 INCHES MINIMUM AND 0.9690 INCHES MAXIMUM IN |
| Material | IRON CAST |
| 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 |
|---|---|
| P12615021 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| P12615021 | 3/9 Design control — primary reference U.S. Government activity |
NSN 2815-01-180-0798 is a Guide,valve Stem, manufactured by Fairbanks Morse, Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-180-0798 has 1 manufacturer part number on file: P12615021 (Fairbanks Morse, Llc).
Key specifications for P12615021: Material Document and Classification: ASTM A48 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 12.866 INCHES MINIMUM AND 12.882 INCHES MAXIMUM IN; Bore Counterbore: INCLUDED; Counterbore Depth: 2.303 INCHES NOMINAL AND 2.795 INCHES NOMINAL IN. 7 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.