The Cylinder Assembly,reaction, cataloged under National Stock Number 2540-01-258-5164, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Itt Enidine Inc. Dba Itt Enidine Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-01-258-5164 |
| Primary Part Number | FP21216 |
| Item Name | Cylinder Assembly,reaction |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Itt Enidine Inc. Dba Itt Enidine Inc |
| Status | ACTIVE |
| Compressed Length | 4.375 INCHES NOMINAL IN |
| Extended Length | 5.125 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Features Provided | SPRING LOADED |
| Working Pressure Rating | 2.1 PER CYCLE NOMINAL |
| Mounting Type and Location | ROD CYLINDER HEAD END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 6077710 ITEM 57 | Naval Sea Systems Command (USA) |
| SH.75 | Itt Enidine Inc. Dba Itt Enidine Inc (USA) |
| FP21216 PRIMARY | Itt Enidine Inc. Dba Itt Enidine Inc (USA) |
| Reference | Meaning |
|---|---|
| 6077710 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2540-01-258-5164 is a Cylinder Assembly,reaction, manufactured by Itt Enidine Inc. Dba Itt Enidine Inc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-258-5164 has 3 manufacturer part numbers on file: 6077710 ITEM 57 (Naval Sea Systems Command), SH.75 (Itt Enidine Inc. Dba Itt Enidine Inc), FP21216 (Itt Enidine Inc. Dba Itt Enidine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-429-9686, 2520-01-571-7303. Verify interchangeability with system specifications before substitution.
Key specifications for FP21216: Compressed Length: 4.375 INCHES NOMINAL IN; Extended Length: 5.125 INCHES NOMINAL IN; Design Characteristics: SINGLE ACTING SINGLE CYLINDER; Features Provided: SPRING LOADED. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.