The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-036-7304, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-036-7304 |
| Primary Part Number | 3997956 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Head Height | 0.230 INCHES NOMINAL IN |
| Rib Included Angle | 80.0 DEGREES NOMINAL |
| Fastener Length | 1.900 INCHES NOMINAL IN |
| Shoulder Length | 0.670 INCHES NOMINAL FIRST SHOULDER IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.060 INCHES NOMINAL IN |
| Shoulder Diameter | 0.600 INCHES MINIMUM AND 0.606 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.050 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Rib Length | 0.240 INCHES NOMINAL IN |
| Rib Minor Diameter | 0.588 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.615 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNRF |
| Rib Quantity | 37 |
| Head Diameter | 0.805 INCHES MINIMUM AND 0.815 INCHES MAXIMUM 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 |
|---|---|
| 3997956 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 3997956 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 3997956 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 5306-01-036-7304 is a Bolt,ribbed Shoulder, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-036-7304 has 1 manufacturer part number on file: 3997956 (General Motors Llc Dba General Motors Llc).
Key specifications for 3997956: Head Height: 0.230 INCHES NOMINAL IN; Rib Included Angle: 80.0 DEGREES NOMINAL; Fastener Length: 1.900 INCHES NOMINAL IN; Shoulder Length: 0.670 INCHES NOMINAL FIRST SHOULDER IN. 20 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.