The Cylinder Sleeve, cataloged under National Stock Number 2815-00-554-6306, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Agco Corp Parts Opn. Government technical data includes 24 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-554-6306 |
| Primary Part Number | B839 |
| Item Name | Cylinder Sleeve |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Agco Corp Parts Opn |
| Status | ACTIVE |
| FSC Application Data | ENGINE,DIESEL |
| Groove Radius Depth | 0.062 INCHES NOMINAL IN |
| Chamfer Length | 0.031 INCHES NOMINAL IN |
| Bottom Chamfer Length | 0.062 INCHES NOMINAL IN |
| Flange Thickness | 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Design Type | WET |
| Largest Outside Diameter Width Under Flange | 0.250 INCHES NOMINAL IN |
| Largest Outside Diameter Under Flange | 3.901 INCHES MINIMUM AND 3.903 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.750 INCHES NOMINAL IN |
| Top Intake Port | NOT INCLUDED |
| Style Designator | WET, RELIEVED, THREE SEAL GROOVES |
| Top Inside Chamfer | INCLUDED |
| Valve Recess | NOT INCLUDED |
| Body Length | 5.438 INCHES NOMINAL IN |
| Intake Hole | NOT INCLUDED |
| Grooved Portion Outside Diameter | 3.871 INCHES MINIMUM AND 3.878 INCHES MAXIMUM IN |
| Chamfer Angle in Deg | 30.0 |
| Bottom Inside Chamfer | INCLUDED |
| Bore Diameter | 3.436 INCHES MINIMUM AND 3.438 INCHES MAXIMUM IN |
| Material | IRON CAST |
| Flange Outside Diameter | 3.968 INCHES MINIMUM AND 3.972 INCHES MAXIMUM IN |
| Groove Width | 0.1875 INCHES NOMINAL IN |
| Grooved Portion Width | 0.938 INCHES NOMINAL IN |
| Bottom Chamfer Angle in Deg | 30.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2815-00-554-6306 is a Cylinder Sleeve, manufactured by Agco Corp Parts Opn, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-554-6306 has 2 manufacturer part numbers on file: 4500839 (Agco Corp Parts Opn), B839 (Agco Corp Parts Opn).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-419-3226, 5998-01-505-5953. Verify interchangeability with system specifications before substitution.
Key specifications for B839: FSC Application Data: ENGINE,DIESEL; Groove Radius Depth: 0.062 INCHES NOMINAL IN; Chamfer Length: 0.031 INCHES NOMINAL IN; Bottom Chamfer Length: 0.062 INCHES NOMINAL IN. 24 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.