The Bolt,machine, cataloged under National Stock Number 5306-01-555-3631, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-555-3631 |
| Primary Part Number | 8T6974 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Height | 4.000 MILLIMETERS NOMINAL MM |
| Fastener Length | 80.000 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.000 |
| Thread Length | 18.000 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 6.000 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 62.000 MILLIMETERS NOMINAL MM |
| Width Between Flats | 10.000 MILLIMETERS NOMINAL MM |
| Thread Series Designator | M |
| 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 |
|---|---|
| 8T6974 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5306-01-555-3631 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-555-3631 has 1 manufacturer part number on file: 8T6974 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8T6974: Head Height: 4.000 MILLIMETERS NOMINAL MM; Fastener Length: 80.000 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.000; Thread Length: 18.000 MILLIMETERS NOMINAL MM. 10 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.