The Bolt,machine, cataloged under National Stock Number 5306-01-238-8271, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Cummins Inc.. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-238-8271 |
| Primary Part Number | 3903096 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Head Height | 5.50 MILLIMETERS NOMINAL MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 70.00 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 54.00 MILLIMETERS MINIMUM AND 70.00 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | DIN933 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 13.00 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC AND PHOSPHATE OVERALL |
| Minimum Tensile Strength | 142230 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 128000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL PROPERTY CLASS 9.8 OR STEEL PROPERTY CLASS 10.9 OVERALL |
| 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 |
|---|---|
| CBU1137 | Leyland Trucks Ltd (for Spare Parts See U6425) (GBR) |
| 124763 | Uro Vehiculos Especiales Sa (ESP) |
| 3903096 PRIMARY | Cummins Inc. (USA) |
| 02/911028 | Jc Bamford Excavators Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 44467 | C/1 Advisory reference — outside the item-of-supply concept Barnes Group Inc. Dba Barnes Distribution |
| 5306PL0816560 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-238-8271 is a Bolt,machine, manufactured by Cummins Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-238-8271 has 4 manufacturer part numbers on file: CBU1137 (Leyland Trucks Ltd (for Spare Parts See U6425)), 124763 (Uro Vehiculos Especiales Sa), 3903096 (Cummins Inc.), 02/911028 (Jc Bamford Excavators Ltd).
2 possible matches (shared part number, not a government interchangeability claim): 2805-01-354-7986, 3120-01-414-5909. Verify interchangeability with system specifications before substitution.
Key specifications for 3903096: Head Height: 5.50 MILLIMETERS NOMINAL MM; External Thread Tolerance Class: 6G G; Fastener Length: 70.00 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.25. 17 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.