The Valve,poppet,engine, cataloged under National Stock Number 2815-00-485-9919, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Lister Petter Ltd. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-00-485-9919 |
| Primary Part Number | AAB53 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Lister Petter Ltd |
| Status | ACTIVE |
| Stem Diameter | 0.2500 INCHES NOMINAL IN |
| Head Height | 0.1000 INCHES NOMINAL IN |
| Stem Length | 3.1570 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Neck Radius | 0.3437 INCHES NOMINAL IN |
| Groove Diameter | 0.1880 INCHES NOMINAL IN |
| Distance From Groove to Stem End | 0.1130 INCHES NOMINAL IN |
| Outside Diameter | 1.0000 INCHES NOMINAL IN |
| Stem Style | GROOVED |
| Head Style | FLAT |
| Carbon Relief Groove | NOT INCLUDED |
| Material | STEEL OVERALL |
| Groove Width | 0.0970 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 |
|---|---|
| AAB53 | Lister Petter Ltd (GBR) |
| Reference | Meaning |
|---|---|
| AAB53 | 3/9 Design control — primary reference Petrodyne Field Energy Systems Co Dba Pfesco |
NSN 2815-00-485-9919 is a Valve,poppet,engine, manufactured by Lister Petter Ltd, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-485-9919 has 1 manufacturer part number on file: AAB53 (Lister Petter Ltd).
Key specifications for AAB53: Stem Diameter: 0.2500 INCHES NOMINAL IN; Head Height: 0.1000 INCHES NOMINAL IN; Stem Length: 3.1570 INCHES NOMINAL IN; Seat Angle in Deg: 45.0. 13 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.