The Bolt,machine, cataloged under National Stock Number 5306-01-434-3757, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-434-3757 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Head Height | 1.090 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN |
| Fastener Length | 2.630 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 2.539 INCHES MINIMUM AND 2.549 INCHES MAXIMUM IN |
| Thread Length | 1.750 INCHES NOMINAL IN |
| Hardness Rating | 255.0 BRINELL STANDARD MAXIMUM OVERALL |
| Material Document and Classification | AMS 5640, TYPE 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.375 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Head Minor Diameter | 1.485 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 303SE 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 |
|---|---|
| 17G980020-35 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-434-3757 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-434-3757: Extended Washer Thickness: 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Head Height: 1.090 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN; Fastener Length: 2.630 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.