The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-548-1223, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-548-1223 |
| Primary Part Number | 4J-5977 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Nut Style | HEXAGON |
| 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 |
|---|---|
| 4J-5977 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 70768 | 5/9 Secondary reference Paccar Winch Inc Dba Paccar Winch Division |
NSN 5310-01-548-1223 is a Nut,plain,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-548-1223 has 1 manufacturer part number on file: 4J-5977 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4J-5977: Special Features: NHA IS MOUNTING GROUP;THREAD SIZE IS 1.125 INCHES DIA WITH 7 THREADS PER INCH;MATERIAL IS GRADE 8 IN; Part Name Assigned by Controlling Agency: NUT HX; Nut Style: HEXAGON; End Item Identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80. 1 specification is 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.