The Bolt,eccentric Head, cataloged under National Stock Number 5306-01-039-4405, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-039-4405 |
| Primary Part Number | 591950 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Head Height | 0.184 INCHES NOMINAL IN |
| Fastener Length | 1.207 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.474 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1020 OR STEEL COMP 1212 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.014 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 |
|---|---|
| 591950 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 591950 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5306-01-039-4405 is a Bolt,eccentric Head, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-039-4405 has 1 manufacturer part number on file: 591950 (General Motors Llc Dba General Motors Llc).
Key specifications for 591950: Head Height: 0.184 INCHES NOMINAL IN; Fastener Length: 1.207 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.474 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN. 12 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.