The Cylinder Sleeve, cataloged under National Stock Number 2815-01-434-5189, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Renk America Llc Div Renk America. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-434-5189 |
| Primary Part Number | CPR2257 |
| Item Name | Cylinder Sleeve |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Renk America Llc Div Renk America |
| Status | ACTIVE |
| Chamfer Length | 0.060 INCHES NOMINAL IN |
| Design Type | DRY |
| Body Outside Diameter | 1.800 INCHES NOMINAL IN |
| Style Designator | DRY, PLAIN |
| Top Inside Chamfer | INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Bottom Inside Chamfer | NOT INCLUDED |
| Bore Diameter | 1.635 INCHES MINIMUM AND 1.637 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING |
| Metallic Hardness Rating | 38.0 MINIMUM ROCKWELL C AND 49.0 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 |
|---|---|
| CPR2257 PRIMARY | Renk America Llc Div Renk America (USA) |
| Reference | Meaning |
|---|---|
| CPR2257 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2815-01-434-5189 is a Cylinder Sleeve, manufactured by Renk America Llc Div Renk America, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-434-5189 has 1 manufacturer part number on file: CPR2257 (Renk America Llc Div Renk America).
Key specifications for CPR2257: Chamfer Length: 0.060 INCHES NOMINAL IN; Design Type: DRY; Body Outside Diameter: 1.800 INCHES NOMINAL IN; Style Designator: DRY, PLAIN. 10 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.