The Bolt,machine, cataloged under National Stock Number 5306-01-324-2580, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-324-2580 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 1.175 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN |
| Fastener Length | 9.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM B633 TY2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 4.250 INCHES NOMINAL IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ASTM A193 GR B7 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 2.000 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 5.250 INCHES NOMINAL IN |
| Width Between Flats | 3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 3 TYPE AND B7 GRADE |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 105000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 4.5 |
| Material | STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 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 |
| Reference | Meaning |
|---|---|
| 2-000-4.5 UNC-2A 9 500 LG | 3/2 Design control — primary reference U.S. Government activity |
| MIL-S-1222,STEE L,HEX HEAD,TY-3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-324-2580 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-324-2580: Head Height: 1.175 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN; Fastener Length: 9.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM B633 TY2 CL FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 4.250 INCHES NOMINAL IN. 20 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.