The Bolt,square Neck, cataloged under National Stock Number 5306-01-641-7643, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-641-7643 |
| Primary Part Number | 0162158 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Neck Length | 4.4 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM MM |
| Head Height | 4.1 MILLIMETERS MINIMUM AND 4.8 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 8G G |
| Fastener Length | 55.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 55.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Neck Width | 7.4 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM MM |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Head Diameter | 19.3 MILLIMETERS MINIMUM AND 20.6 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 0162158 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5306-01-641-7643 is a Bolt,square Neck, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-641-7643 has 1 manufacturer part number on file: 0162158 (Fastenal Company Dba Fastenal Co).
Key specifications for 0162158: Neck Length: 4.4 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM MM; Head Height: 4.1 MILLIMETERS MINIMUM AND 4.8 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 8G G; Fastener Length: 55.0 MILLIMETERS NOMINAL MM. 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.