The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-646-6848, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-646-6848 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| First Piston Rod End Thread Class | 2B |
| Actuation Method | DIRECT |
| Mounting Facility Diameter | 0.408 INCHES NOMINAL IN |
| Compressed Length | 8.300 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 LOCATION NOT OTHERWISE SPECIFIED |
| Extended Length | 9.585 INCHES NOMINAL IN |
| Port Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| First Piston Rod End Thread Quantity Per Inch | 18 |
| Body Outside Diameter | 2.310 INCHES NOMINAL IN |
| Mounting Provision Arrangement Style | FOUR HOLE RECTANGULAR |
| First Piston Rod End Style | RING TYPE LOCATION NOT OTHERWISE SPECIFIED |
| Longest Vertical Distance Between Mounting Centers | 2.406 INCHES NOMINAL IN |
| Port Thread Class | 2B LOCATION NOT OTHERWISE SPECIFIED |
| Thread Direction | UNABLE TO DECODE |
| Port Thread Quantity Per Inch | 20 LOCATION NOT OTHERWISE SPECIFIED |
| Port Location and Quantity | 3 CYLINDER HEAD END |
| Port Style | INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED |
| First Piston Rod End Thread Series Designator | UNS |
| Straight Bore Inside Diameter | 1.875 INCHES NOMINAL IN |
| Material | IRON CAST BODY |
| Mounting Type and Location | FLANGE PISTON ROD END |
| Reservoir Type | INTEGRAL |
| Mounting Provision | UNTHREADED MOUNTING HOLES |
| First Piston Rod End Thread Diameter | 0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| First End Outside Diameter | 0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Longest Horizontal Distance Between Mounting Centers | 2.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| LL220-12 | 3/9 Design control — primary reference Pettibone Llc |
| LL-220-12 | C/1 Advisory reference — outside the item-of-supply concept Pettibone/traverse Lift L.l.c. |
NSN 2530-00-646-6848 is a Cylinder Assembly,hydraulic Brak, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
Key specifications for 2530-00-646-6848: First Piston Rod End Thread Class: 2B; Actuation Method: DIRECT; Mounting Facility Diameter: 0.408 INCHES NOMINAL IN; Overall Height: 6.180 INCHES NOMINAL IN. 26 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.