The Bolt,machine, cataloged under National Stock Number 5306-01-159-2769, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lehigh Armstrong Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-01-159-2769 |
| Primary Part Number | DIN933M12X25 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lehigh Armstrong Inc |
| Status | ACTIVE |
| Head Height | 8.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 25.00 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.75 |
| Thread Length | 20.63 MILLIMETERS MINIMUM AND 25.00 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | DIN 933 8.8 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 19.0 MILLIMETERS NOMINAL MM |
| Minimum Tensile Strength | 113784 POUNDS PER SQUARE INCH LBS |
| Material | STEEL PROPERTY CLASS 8.8 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 |
|---|---|
| DIN933M12X25 PRIMARY | Lehigh Armstrong Inc (USA) |
| Reference | Meaning |
|---|---|
| DIN933M12X25 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-159-2769 is a Bolt,machine, manufactured by Lehigh Armstrong Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-159-2769 has 1 manufacturer part number on file: DIN933M12X25 (Lehigh Armstrong Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-407-7196. Verify interchangeability with system specifications before substitution.
Key specifications for DIN933M12X25: Head Height: 8.0 MILLIMETERS NOMINAL MM; Fastener Length: 25.00 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.75; Thread Length: 20.63 MILLIMETERS MINIMUM AND 25.00 MILLIMETERS MAXIMUM MM. 14 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.