The Bolt,machine, cataloged under National Stock Number 5306-01-535-0743, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-535-0743 |
| Primary Part Number | AS3580-6-28 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Extended Washer Thickness | 0.174 INCHES MINIMUM IN |
| Head Height | 0.383 INCHES NOMINAL IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.562 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.437 INCHES NOMINAL IN |
| Minimum Tensile Strength | 185000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| AS3580-6-28 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS3580 | 5/9 Secondary reference U.S. Government activity |
| AS3580-6-28 | 5/9 Secondary reference U.S. Government activity |
| AS3580 | 3/1 Design control — primary reference Sae International Dba Sae International |
| GEK 112775 FIG. 8 INDEX-28 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
NSN 5306-01-535-0743 is a Bolt,machine, manufactured by Sae International Dba Sae International, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-535-0743 has 1 manufacturer part number on file: AS3580-6-28 (Sae International Dba Sae International).
Key specifications for AS3580-6-28: Extended Washer Thickness: 0.174 INCHES MINIMUM IN; Head Height: 0.383 INCHES NOMINAL IN; Fastener Length: 1.750 INCHES NOMINAL IN; Extended Washer Diameter: 0.562 INCHES NOMINAL IN. 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.