The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-303-3575, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 2805-00-303-3575 |
| Primary Part Number | 8717189 |
| 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 |
| Ring Groove Width | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Width | 0.1890 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM THIRD RING IN |
| Ring Groove Width | 0.0980 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.0980 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM SECOND RING IN |
| Distance Between Pin Bosses | 2.060 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Skirt Slot Style | NO SLOT |
| Supplementary Features | OIL PASSAGE HOLE |
| Diameter | 5.724 INCHES MINIMUM AND 5.725 INCHES MAXIMUM IN |
| Ring Groove Diameter | 5.169 INCHES MINIMUM FIFTH RING IN |
| Ring Groove Diameter | 5.169 INCHES MINIMUM SEVENTH RING IN |
| Ring Groove Diameter | 5.179 INCHES MAXIMUM EIGHTH RING IN |
| Ring Groove Diameter | 5.179 INCHES MAXIMUM SIXTH RING IN |
| Ring Groove Diameter | 5.264 INCHES MINIMUM THIRD RING IN |
| Ring Groove Diameter | 5.274 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Diameter | 5.301 INCHES MINIMUM FIRST RING IN |
| Ring Groove Diameter | 5.311 INCHES MAXIMUM SECOND RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.185 INCHES MINIMUM AND 3.195 INCHES MAXIMUM IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | DISH |
| Ring Groove Quantity | 4 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 1.3760 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 2805-00-303-3575 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 2805-00-303-3575 has 2 manufacturer part numbers on file: 550822 (Renk America Llc Div Renk America), 8717189 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-003-7387. Verify interchangeability with system specifications before substitution.
Key specifications for 8717189: Overall Height: 4.810 INCHES MINIMUM AND 4.820 INCHES MAXIMUM IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN; Ring Groove Width: 0.1890 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM THIRD RING IN. 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.