The Bolt,machine, cataloged under National Stock Number 5306-01-176-7370, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-176-7370 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.640 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN |
| Fastener Length | 3.812 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.921 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 1.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.859 INCHES MINIMUM AND 2.891 INCHES MAXIMUM IN |
| Width Between Flats | 1.802 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 416074-3 | 5/9 Secondary reference Ame International L.l.c. |
| 416074-3 | 5/9 Secondary reference Quality Socket Screw Manufacturing Corp |
| 416074-3 | 5/9 Secondary reference Nassau Tool Works, Inc |
| 416074-3 | 3/2 Design control — primary reference U.S. Government activity |
| 416074-3 | 5/9 Secondary reference Computa-Base-Machining, Inc. |
| 416074-3 | 5/9 Secondary reference Bek, Inc. Dba Level 1 Fasteners |
| 416074-3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 416074-3 | 5/9 Secondary reference M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| 416074-3 | 5/9 Secondary reference Stanfordville Machine & Manufacturing Co Inc |
NSN 5306-01-176-7370 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-176-7370: Head Height: 0.640 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN; Fastener Length: 3.812 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.921 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN. 15 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.