The Piston,hydraulic Brake, cataloged under National Stock Number 2530-01-281-9420, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Cmbf, Llc Dba Cmbf Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-281-9420 |
| Primary Part Number | 2297L3678 |
| Item Name | Piston,hydraulic Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Cmbf, Llc Dba Cmbf Llc |
| Status | ACTIVE |
| Piston Cup | INCLUDED |
| Shape | OVAL |
| Surface Condition | EXTERNALLY GROOVED |
| Steel Insert | NOT INCLUDED |
| Construction Type | ONE-PIECE |
| Shoe Actuating End Type | SLOTTED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9-049-105503 | Grove U.s. Llc Dba Grove Us Llc (USA) |
| 2297L3678 PRIMARY | Cmbf, Llc Dba Cmbf Llc (USA) |
| Reference | Meaning |
|---|---|
| 2297L3678 | 3/9 Design control — primary reference Motion Control Industries, Inc. |
| 2297-L-3678 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| EVB-C5 | D/9 Drawing number reference only Meritor Heavy Vehicle Systems, Llc |
NSN 2530-01-281-9420 is a Piston,hydraulic Brake, manufactured by Cmbf, Llc Dba Cmbf Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-281-9420 has 2 manufacturer part numbers on file: 9-049-105503 (Grove U.s. Llc Dba Grove Us Llc), 2297L3678 (Cmbf, Llc Dba Cmbf Llc).
Key specifications for 2297L3678: Piston Cup: INCLUDED; Shape: OVAL; Surface Condition: EXTERNALLY GROOVED; Steel Insert: NOT INCLUDED. 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.