The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-277-6227, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-277-6227 |
| Primary Part Number | 73586D-8-A29 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.281 INCHES NOMINAL IN |
| Fastener Length | 2.451 INCHES MINIMUM AND 2.492 INCHES MAXIMUM IN |
| Thread Length | 0.529 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN |
| Width Between Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.198 INCHES MINIMUM AND 2.218 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| 73586D-8-A29 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| LE111-0064-0829 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| 73586D-8-29 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-277-6227 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-277-6227 has 1 manufacturer part number on file: 73586D-8-A29 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 73586D-8-A29: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.281 INCHES NOMINAL IN; Fastener Length: 2.451 INCHES MINIMUM AND 2.492 INCHES MAXIMUM IN. 19 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.