The Cylinder Sleeve, cataloged under National Stock Number 2815-00-362-7993, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-00-362-7993 |
| Primary Part Number | 7B4348 |
| Item Name | Cylinder Sleeve |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Groove Radius Depth | 0.125 INCHES NOMINAL IN |
| Bottom Chamfer Length | 0.093 INCHES NOMINAL IN |
| Flange Thickness | 0.438 INCHES NOMINAL IN |
| Design Type | WET |
| Largest Outside Diameter Under Flange | 5.313 INCHES NOMINAL IN |
| Body Outside Diameter | 5.188 INCHES NOMINAL IN |
| Top Intake Port | NOT INCLUDED |
| Style Designator | WET, TWO SEAL GROOVES AND PILOT |
| Top Inside Chamfer | NOT INCLUDED |
| Valve Recess | NOT INCLUDED |
| Body Length | 8.500 INCHES NOMINAL IN |
| Intake Hole | NOT INCLUDED |
| Grooved Portion Outside Diameter | 5.094 INCHES NOMINAL IN |
| Surface Treatment | OXIDE |
| Bottom Inside Chamfer | INCLUDED |
| Bore Diameter | 4.250 INCHES NOMINAL IN |
| Material | STEEL |
| Flange Outside Diameter | 5.500 INCHES NOMINAL IN |
| Groove Width | 0.313 INCHES NOMINAL IN |
| Grooved Portion Width | 0.781 INCHES NOMINAL IN |
| Bottom Chamfer Angle in Deg | 52.0 |
| 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 |
|---|---|
| 7B4348 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| IPD7B4348 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
NSN 2815-00-362-7993 is a Cylinder Sleeve, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-362-7993 has 1 manufacturer part number on file: 7B4348 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 7B4348: Groove Radius Depth: 0.125 INCHES NOMINAL IN; Bottom Chamfer Length: 0.093 INCHES NOMINAL IN; Flange Thickness: 0.438 INCHES NOMINAL IN; Design Type: WET. 21 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.