The Bolt,square Neck, cataloged under National Stock Number 5306-01-059-1086, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-059-1086 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Neck Length | 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Head Height | 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Fastener Length | 5.400 INCHES MINIMUM AND 5.560 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,CL 3 FED SPEC 1ST TREATMENT RESPONSE AND QQ-P-416,CL 3 FED SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325,CL 3 FED SPEC 3RD TREATMENT RESPONSE AND QQ-Z-325,CL 3 FED SPEC 4TH TREATMENT RESPONSE OR MIL-C-81562,TY 2,CL 3 MIL SPEC 5TH TREATMENT RESPONSE OR MIL-C-81562,TY 2,CL 3 MIL SPEC 6TH TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A307,GR A ASSN STD SINGLE MATERIAL RESPONSE OR FF-B-584,GR 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | BUTTON |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS AND A STYLE |
| Neck Width | 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OR CADMIUM OR ZINC OVERALL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL OVERALL |
| Head Diameter | 1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM 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 |
|---|---|
| FFB584TYPE1CLASS1STYLEA | 5/9 Secondary reference U.S. Government activity |
| FF-B-584 | 4/1 Identification reference U.S. Government activity |
| MS35751-165 | 5/9 Secondary reference U.S. Government activity |
| MS35751-165 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-059-1086 is a Bolt,square Neck, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-059-1086: Neck Length: 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN; Head Height: 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN; Fastener Length: 5.400 INCHES MINIMUM AND 5.560 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,CL 3 FED SPEC 1ST TREATMENT RESPONSE AND QQ-P-416,CL 3 FED SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325,CL 3 FED SPEC 3RD TREATMENT RESPONSE AND QQ-Z-325,CL 3 FED SPEC 4TH TREATMENT RESPONSE OR MIL-C-81562,TY 2,CL 3 MIL SPEC 5TH TREATMENT RESPONSE OR MIL-C-81562,TY 2,CL 3 MIL SPEC 6TH TREATMENT RESPONSE OVERALL. 13 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.