The Bolt,square Neck, cataloged under National Stock Number 5306-01-044-5141, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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 | 5306-01-044-5141 |
| Primary Part Number | 8J2928 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Neck Length | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Head Height | 0.185 INCHES NOMINAL0.185 INCHES NOMINAL IN |
| Fastener Length | 3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.375 INCHES MAXIMUM1.375 INCHES MAXIMUM IN |
| Material Document and Classification | SAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 1.000 INCHES1.000 INCHES IN |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Neck Width | 1.030 INCHES NOMINAL1.030 INCHES NOMINAL IN |
| Thread Class | 2A2A |
| Thread Quantity Per Inch | 88 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.568 INCHES NOMINAL1.568 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 |
|---|---|
| 8J2928 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5306-01-044-5141 is a Bolt,square Neck, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-044-5141 has 1 manufacturer part number on file: 8J2928 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 8J2928: Neck Length: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN; Head Height: 0.185 INCHES NOMINAL0.185 INCHES NOMINAL IN; Fastener Length: 3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.375 INCHES MAXIMUM1.375 INCHES MAXIMUM IN. 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.