The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-582-3263, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-582-3263 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.220 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Fastener Length | 3.045 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS-P-416,TYPE II,CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.750 INCHES MINIMUM AND 2.766 INCHES MAXIMUM IN |
| Width Between Flats | 0.617 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Grip Diameter | 0.435 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL 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 |
| Reference | Meaning |
|---|---|
| NASM27576-7-44 | 5/9 Secondary reference U.S. Government activity |
| MS27576-7-44 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-582-3263 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-582-3263: Head Height: 0.220 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Fastener Length: 3.045 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS-P-416,TYPE II,CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Nominal Thread Diameter: 0.437 INCHES IN. 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.