The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-00-930-2551, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is S&s Truck Parts, Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-930-2551 |
| Primary Part Number | S972 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | S&s Truck Parts, Llc |
| Status | ACTIVE |
| Compressed Length | 29.438 INCHES NOMINAL IN |
| Extended Length | 72.000 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNF |
| First Piston Rod End Style | BEARING TYPE |
| First End Thickness at Mounting Holes | 3.000 INCHES NOMINAL IN |
| Port Thread Quantity Per Inch | 12 |
| Body Material | STEEL |
| Port Thread Diameter | 1.062 INCHES NOMINAL IN |
| First End Hole Diameter | 2.003 INCHES NOMINAL IN |
| Bore Diameter | 5.250 INCHES NOMINAL IN |
| Mounting Type and Location | TRUNNION CENTER SECTION |
| 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 |
|---|---|
| S972 PRIMARY | S&s Truck Parts, Llc (USA) |
| Reference | Meaning |
|---|---|
| 32-192930H2 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
| 192930 | D/9 Drawing number reference only Komatsu American Intl Co |
| 32-192930H2 | C/1 Advisory reference — outside the item-of-supply concept Tvh Parts Co. |
NSN 3040-00-930-2551 is a Cylinder Assembly,actuating,line, manufactured by S&s Truck Parts, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-930-2551 has 1 manufacturer part number on file: S972 (S&s Truck Parts, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-681-4456. Verify interchangeability with system specifications before substitution.
Key specifications for S972: Compressed Length: 29.438 INCHES NOMINAL IN; Extended Length: 72.000 INCHES NOMINAL IN; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER; Port Thread Series Designator: UNF. 12 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.