The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-354-6307, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-354-6307 |
| Primary Part Number | A8-274 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Ring Groove Diameter | 4.550 INCHES MINIMUM AND 4.560 INCHES MAXIMUM FIRST RING IN |
| Skirt Type | SOLID |
| Carbon Groove | NOT INCLUDED |
| Pinhole Diameter | 1.5000 INCHES NOMINAL IN |
| Ring Groove Width | 0.1570 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 4.550 INCHES MINIMUM AND 4.560 INCHES MAXIMUM THIRD RING IN |
| Surface Finish | FINISHED |
| Ring | NOT INCLUDED |
| Oil Groove | INCLUDED |
| Head Style | FLAT |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Surface Treatment | TIN |
| Diameter | 4.994 INCHES MINIMUM AND 4.995 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| Pin Type for Which Designed | FLOATING |
| Oil Passage Type | HOLE FOURTH RING |
| Retaining Ring Groove | INCLUDED |
| Ring Groove Diameter | 4.510 INCHES MINIMUM AND 4.520 INCHES MAXIMUM FOURTH RING IN |
| Distance Between Pin Bosses | 4.638 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Ring Groove Diameter | 4.550 INCHES MINIMUM AND 4.560 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Width | 0.1570 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.286 INCHES MINIMUM AND 3.291 INCHES MAXIMUM IN |
| Ring Groove Quantity | 4 |
| Ring Groove Width | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Width | 0.1570 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM FIRST RING IN |
| Finished Size Designation | STANDARD |
| Pin Hole Bushing | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2805-00-354-6307 is a Piston,internal Combustion Engin, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2805 (No Item Name Available). Status: active.
NSN 2805-00-354-6307 has 3 cross-referenced part numbers: A263174 (Dresser Industries Inc Waukesha Engine Div), A8-274 (Dresser Industries Inc Leroi Div), A8-274 (Dresser Industries Inc Waukesha Engine Div).
There is 1 known substitute for 2805-00-354-6307: 4730-00-988-7786. Verify interchangeability with system specifications before substitution.
Key specifications for A8-274: Ring Groove Diameter: 4.550 INCHES MINIMUM AND 4.560 INCHES MAXIMUM FIRST RING IN; Skirt Type: SOLID; Carbon Groove: NOT INCLUDED; Pinhole Diameter: 1.5000 INCHES NOMINAL IN. 29 total characteristics are documented in the Federal Logistics Information System.