The Bolt,machine, cataloged under National Stock Number 5306-01-051-7598, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-051-7598 |
| Primary Part Number | 0S1569 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Height | 0.484 INCHES NOMINAL IN |
| Fastener Length | 4.000 INCHES NOMINAL IN |
| Thread Length | 1.625 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.375 INCHES NOMINAL IN |
| Width Between Flats | 0.925 INCHES NOMINAL IN |
| Surface Treatment | OXIDE OVERALL |
| Thread Quantity Per Inch | 11 |
| Material | STEEL 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 |
|---|---|
| 0S1569 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 0S-1569 | Pon Equipment B.v. (NLD) |
| Reference | Meaning |
|---|---|
| 6028 | 3/9 Design control — primary reference Super Tool Div of Morse Cutting Tools Corp |
| S1569 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 5306-01-051-7598 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-051-7598 has 2 manufacturer part numbers on file: 0S1569 (Caterpillar Inc Div Caterpillar Defense), 0S-1569 (Pon Equipment B.v.).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-373-1723. Verify interchangeability with system specifications before substitution.
Key specifications for 0S1569: Head Height: 0.484 INCHES NOMINAL IN; Fastener Length: 4.000 INCHES NOMINAL IN; Thread Length: 1.625 INCHES NOMINAL IN; Nominal Thread Diameter: 0.625 INCHES IN. 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.