The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-778-7602, 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 Federal-Mogul Corp Government Sales Dept. Government technical data includes 26 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2805-00-778-7602 |
| Primary Part Number | 272NP |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Federal-Mogul Corp Government Sales Dept |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1880 INCHES NOMINAL THIRD RING IN |
| Ring Groove Width | 0.0800 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.0800 INCHES NOMINAL SECOND RING IN |
| Distance Between Pin Bosses | 1.250 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | SLOT LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 4.000 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.561 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 3.561 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 3.598 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.386 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 0.9140 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| Skirt Type | SOLID |
| Cut Depth | 0.920 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 |
|---|---|
| 272NP PRIMARY | Federal-Mogul Corp Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| C3AZ6108AF | 5/9 Secondary reference Ford Motor Company |
| P942AXSTD | 5/9 Secondary reference Mcquay-Norris Inc Oem Div an Skf Industries Co |
| L2305F | 3/2 Design control — primary reference U.S. Government activity |
| C3AZ6108AF | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 272NP | 5/9 Secondary reference Federal-Mogul Corp Powertrain Products Div |
| P942AX | 5/9 Secondary reference Mcquay-Norris Inc Oem Div an Skf Industries Co |
| 2126P | 5/9 Secondary reference Spx Corp |
NSN 2805-00-778-7602 is a Piston,internal Combustion Engin, manufactured by Federal-Mogul Corp Government Sales Dept, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-778-7602 has 1 manufacturer part number on file: 272NP (Federal-Mogul Corp Government Sales Dept).
1 possible match (shared part number, not a government interchangeability claim): 6250-00-889-1732. Verify interchangeability with system specifications before substitution.
Key specifications for 272NP: Overall Height: 3.340 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1880 INCHES NOMINAL THIRD RING IN; Ring Groove Width: 0.0800 INCHES NOMINAL FIRST RING IN. 26 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.