The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-737-6300, 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 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-737-6300 |
| Primary Part Number | 7376300 |
| 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 |
| Carbon Groove | NOT INCLUDED |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NUMBER 1,NUMBER 2,NUMBER 3,NUMBER4 AND NUMBER 5 PISTON ALL RINGS |
| Skirt Slot Style | GROOVE CONVEX SLOT |
| Diameter | 4.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.348 INCHES MINIMUM FIRST RING IN |
| Ring Groove Diameter | 4.348 INCHES MINIMUM THIRD RING IN |
| Ring Groove Diameter | 4.358 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Diameter | 4.358 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Diameter | 4.415 INCHES MINIMUM FIFTH RING IN |
| Ring Groove Diameter | 4.415 INCHES MINIMUM SEVENTH RING IN |
| Ring Groove Diameter | 4.425 INCHES MAXIMUM EIGHTH RING IN |
| Ring Groove Diameter | 4.425 INCHES MAXIMUM SIXTH 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 |
| Ring Groove Quantity | 5 |
| Oversize | 0.020 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 1.50000 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| 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 |
|---|---|
| 7376300 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| KC1006 | 5/9 Secondary reference Diamond Reo Truck Co |
| R600A4273AN | 3/9 Design control — primary reference Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc |
NSN 2805-00-737-6300 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 2805-00-737-6300 has 1 manufacturer part number on file: 7376300 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-433-4246. Verify interchangeability with system specifications before substitution.
Key specifications for 7376300: Overall Height: 5.935 INCHES MINIMUM AND 5.940 INCHES MAXIMUM IN; Carbon Groove: NOT INCLUDED; Retaining Ring Groove: INCLUDED; Surface Finish: FINISHED. 29 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.