The Cylinder Sleeve, cataloged under National Stock Number 2805-00-056-0191, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-056-0191 |
| Primary Part Number | 8389792-2 |
| Item Name | Cylinder Sleeve |
| 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 | PISTON,GASOLINE,ENGINE,NON-AIRCRAFT |
| Design Type | DRY |
| Body Outside Diameter | 4.192 INCHES MINIMUM AND 4.193 INCHES MAXIMUM IN |
| Top Intake Port | NOT INCLUDED |
| Style Designator | DRY, PLAIN |
| Top Inside Chamfer | NOT INCLUDED |
| Valve Recess | NOT INCLUDED |
| Intake Hole | NOT INCLUDED |
| Bottom Inside Chamfer | NOT INCLUDED |
| Bore Diameter | 3.965 INCHES MINIMUM AND 3.975 INCHES MAXIMUM IN |
| Material | IRON |
| Metallic Hardness Rating | 20.2 MINIMUM ROCKWELL C AND 26.2 MAXIMUM ROCKWELL C |
| 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 |
|---|---|
| 8389792-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2805-00-056-0191 is a Cylinder Sleeve, 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 2805-00-056-0191 has 1 manufacturer part number on file: 8389792-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8389792-2: FSC Application Data: PISTON,GASOLINE,ENGINE,NON-AIRCRAFT; Design Type: DRY; Body Outside Diameter: 4.192 INCHES MINIMUM AND 4.193 INCHES MAXIMUM IN; Top Intake Port: NOT INCLUDED. 12 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.