The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-053-2807, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-053-2807 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.210 INCHES NOMINAL IN |
| Fastener Length | 1.536 INCHES MINIMUM AND 1.566 INCHES MAXIMUM IN |
| Thread Length | 0.447 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.108 INCHES MINIMUM AND 0.111 INCHES MAXIMUM THREADS IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.146 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.564 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.659 INCHES MINIMUM AND 1.679 INCHES MAXIMUM THREADS IN |
| 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 |
|---|---|
| 121933-6-18K | 3/2 Design control — primary reference U.S. Government activity |
| 121933-6-18K | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-053-2807 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-053-2807: Head Height: 0.210 INCHES NOMINAL IN; Fastener Length: 1.536 INCHES MINIMUM AND 1.566 INCHES MAXIMUM IN; Thread Length: 0.447 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.108 INCHES MINIMUM AND 0.111 INCHES MAXIMUM THREADS IN. 18 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.