The Lining,friction, cataloged under National Stock Number 3040-00-475-1668, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-475-1668 |
| Primary Part Number | 9F8976 |
| Item Name | Lining,friction |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Strengthening Feature | INTERNALLY MOLDED-IN REINFORCEMENT |
| Hole Arrangement Style | SINGLE |
| Arc Length | 10.000 INCHES NOMINAL IN |
| Lining Style | SEGMENT PLAIN |
| Features Provided | FLEXIBLE FRICTION LINING |
| Surface Condition and Location | ONE SIDE GROUND |
| Attachment Method | RIVETED |
| Width | 1.500 INCHES NOMINAL IN |
| Minor Radius | 5.062 INCHES NOMINAL IN |
| Material | ASBESTOS FRICTION LINING |
| Fabrication Method | MOLDED |
| Thickness | 0.188 INCHES NOMINAL IN |
| Hole Type and Quantity | 4 COUNTERBORED |
| 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 |
|---|---|
| 9F8976 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| PC1056 | 5/9 Secondary reference The S K Wellman Corp Dba Wellman Friction Products |
| PC1056 | C/1 Advisory reference — outside the item-of-supply concept Cmbf Products Inc |
NSN 3040-00-475-1668 is a Lining,friction, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-475-1668 has 1 manufacturer part number on file: 9F8976 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9F8976: Strengthening Feature: INTERNALLY MOLDED-IN REINFORCEMENT; Hole Arrangement Style: SINGLE; Arc Length: 10.000 INCHES NOMINAL IN; Lining Style: SEGMENT PLAIN. 13 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.