The Cylinder Sleeve, cataloged under National Stock Number 2805-01-120-8545, 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 Derbyshire Machine & Tool Co. Government technical data includes 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2805-01-120-8545 |
| Primary Part Number | 87841-0208 ITEM 6 |
| Item Name | Cylinder Sleeve |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Body Outside Diameter | 5.374 INCHES NOMINAL IN |
| Bore Diameter | 4.975 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 87841-0208 ITEM 6 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 708-4684961 ITEM 6 | 5/2 Secondary reference U.S. Government activity |
| 87841-0208 ITEM 6 | 3/2 Design control — primary reference U.S. Government activity |
| 4684961 ITEM 6 | 5/9 Secondary reference Aluf Industries Inc |
| 708-4684961 | D/9 Drawing number reference only U.S. Government activity |
| 4684961 ITEM 6 | 5/9 Secondary reference Dynatek-Technology Inc |
NSN 2805-01-120-8545 is a Cylinder Sleeve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-120-8545 has 1 manufacturer part number on file: 87841-0208 ITEM 6 (Derbyshire Machine & Tool Co).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-125-5895, 3040-01-128-4601, 3040-01-129-1876. Verify interchangeability with system specifications before substitution.
Key specifications for 87841-0208 ITEM 6: Body Outside Diameter: 5.374 INCHES NOMINAL IN; Overall Length: 20.480 INCHES NOMINAL IN; Special Features: USED ON TORPEDO TUBE SHUTTER DRIVE CYLINDER ASSEMBLY; Bore Diameter: 4.975 INCHES NOMINAL IN. 3 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.
NSN 2805-01-120-8545 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.