The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-737-6301, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-737-6301 |
| Primary Part Number | 7376301 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| FSC Application Data | ENGINE GASOLINE,NONAIRCRAFT |
| Carbon Groove | NOT INCLUDED |
| Distance Between Pin Bosses | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NO. 1,NO. 2,NO. 3,NO. 4,NO. 5 PISTON ALL RINGS |
| Skirt Slot Style | GROOVE CONVEX SLOT |
| Diameter | 4.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.368 INCHES MINIMUM AND 4.378 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Diameter | 4.368 INCHES MINIMUM AND 4.378 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Diameter | 4.395 INCHES MINIMUM AND 4.445 INCHES MAXIMUM THIRD RING IN |
| Ring Groove Diameter | 4.435 INCHES MINIMUM AND 4.445 INCHES MAXIMUM FOURTH RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.620 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Oversize | 0.040 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 1.5000 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 7376301 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| R600A4273AT | 3/9 Design control — primary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| R600A4273A040 | 5/9 Secondary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
| KC1007 | 5/9 Secondary reference Diamond Reo Truck Co |
NSN 2805-00-737-6301 is a Piston,internal Combustion Engin, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-737-6301 has 1 manufacturer part number on file: 7376301 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7376301: Overall Height: 5.904 INCHES MINIMUM AND 5.935 INCHES MAXIMUM IN; FSC Application Data: ENGINE GASOLINE,NONAIRCRAFT; Carbon Groove: NOT INCLUDED; Distance Between Pin Bosses: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM 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.