The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-825-4565, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2805-00-825-4565 |
| Primary Part Number | L167-020 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| FSC Application Data | GASOLINE ENGINE,NONAIRCRAFT |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.0960 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM SECOND RING IN |
| Distance Between Pin Bosses | 1.510 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Supplementary Features | OIL PASSAGE SLOT |
| Diameter | 4.125 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.678 INCHES MINIMUM AND 3.688 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Diameter | 3.698 INCHES MINIMUM AND 3.708 INCHES MAXIMUM SECOND RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.897 INCHES MINIMUM AND 1.902 INCHES MAXIMUM IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | DISH |
| Ring Groove Quantity | 3 |
| Oversize | 0.020 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 1.0910 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| Cut Depth | 0.750 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 |
NSN 2805-00-825-4565 is a Piston,internal Combustion Engin, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-825-4565 has 2 manufacturer part numbers on file: 10886403 (U S Army Tank Automotive Command Amsta-Im-Mm), L167-020 (Trw Inc Trw Intl Trade Government Sales Dept).
Key specifications for L167-020: Overall Height: 3.840 INCHES NOMINAL IN; FSC Application Data: GASOLINE ENGINE,NONAIRCRAFT; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.0960 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM FIRST RING IN. 27 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.