The Bolt,machine, cataloged under National Stock Number 5306-00-426-2941, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-426-2941 |
| Primary Part Number | 0S1756 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Height | 0.475 INCHES NOMINAL IN |
| Fastener Length | 4.190 INCHES NOMINAL IN |
| Thread Length | 1.710 INCHES NOMINAL IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.320 INCHES NOMINAL IN |
| Width Between Flats | 1.102 INCHES NOMINAL IN |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL COMP 1552 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 0S1756 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| S1756 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 5306-00-426-2941 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-426-2941 has 1 manufacturer part number on file: 0S1756 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 0S1756: Head Height: 0.475 INCHES NOMINAL IN; Fastener Length: 4.190 INCHES NOMINAL IN; Thread Length: 1.710 INCHES NOMINAL IN; Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL. 15 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.