The Roller,track, cataloged under National Stock Number 2530-00-756-8522, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-756-8522 |
| Primary Part Number | 6K9879 |
| Item Name | Roller,track |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| General Characteristics Item Description | 1.625 IN. DIA OF SHAFT,3.375 IN. LG OF SHAFT,2 EA PINS 180 DEG APART,0.312 IN. DIA,1.000 IN. LG,11.250 IN. O/A LG,6.625 IN. DIA OF ROLLER,5.750 IN. DIA OF LARGEST END OF ROLLER HUB,2.250 IN. DIA SMALLEST END OF ROLLER HUB IN |
| 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 |
|---|---|
| 6K9879 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 3K7962 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 2530-00-756-8522 is a Roller,track, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-756-8522 has 1 manufacturer part number on file: 6K9879 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 6K9879: General Characteristics Item Description: 1.625 IN. DIA OF SHAFT,3.375 IN. LG OF SHAFT,2 EA PINS 180 DEG APART,0.312 IN. DIA,1.000 IN. LG,11.250 IN. O/A LG,6.625 IN. DIA OF ROLLER,5.750 IN. DIA OF LARGEST END OF ROLLER HUB,2.250 IN. DIA SMALLEST END OF ROLLER HUB IN. 1 specification is 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.