The Bolt,ribbed Neck, cataloged under National Stock Number 5306-00-630-9934, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-630-9934 |
| Primary Part Number | 7953458 |
| Item Name | Bolt,ribbed Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.160 INCHES NOMINAL IN |
| Fastener Length | 1.380 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MAXIMUM IN |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Rib Length | 0.220 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1040 OR STEEL COMP 1541 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.620 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7953458 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 919547 | 3/9 Design control — primary reference General Motors Corp |
NSN 5306-00-630-9934 is a Bolt,ribbed Neck, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-630-9934 has 1 manufacturer part number on file: 7953458 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7953458: Head Height: 0.160 INCHES NOMINAL IN; Fastener Length: 1.380 INCHES NOMINAL IN; Thread Length: 0.750 INCHES MAXIMUM IN; Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL. 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.