The Carbon Stock,electrical Contact, cataloged under National Stock Number 5977-01-429-2746, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Carbon Stock,electrical Contact |
| FSC / FSG | 5977 — Electrical Contact Brushes and Electrodes (FSG 59) |
| Manufacturers | Westrac Equipment Pty Ltd (CAGE Z02C9); Hastings Deering (aust) Pty Ltd (CAGE ZF912); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); William Adams Pty Ltd (CAGE Z2ZA9) |
| Parameter | Value |
|---|---|
| NSN | 5977-01-429-2746 |
| Primary Part Number | 9X-4821 |
| Item Name | Carbon Stock,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 9X-4821 | Westrac Equipment Pty Ltd (AUS) |
| 9X-4821 | Hastings Deering (aust) Pty Ltd (AUS) |
| 9X-4821 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 9X-4821 | William Adams Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 9X-4821 | 5/9 Secondary reference Caterpillar of Australia Pty Ltd |
NSN 5977-01-429-2746 is a Carbon Stock,electrical Contact, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-429-2746 has 4 manufacturer part numbers on file: 9X-4821 (Westrac Equipment Pty Ltd), 9X-4821 (Hastings Deering (aust) Pty Ltd), 9X-4821 (Caterpillar Inc Div Caterpillar Defense), 9X-4821 (William Adams Pty Ltd).
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.