The Bolt,shear, cataloged under National Stock Number 5306-01-190-1503, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is National Oilwell Varco Inc Dba National Oilwell. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-190-1503 |
| Primary Part Number | G4956743 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | National Oilwell Varco Inc Dba National Oilwell |
| Status | ACTIVE |
| Head Height | 0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Fastener Length | 5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM IN |
| Thread Length | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.750 INCHES MAXIMUM IN |
| Width Between Flats | 0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Grip Diameter | 0.6163 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| G4956743 PRIMARY | National Oilwell Varco Inc Dba National Oilwell (USA) |
| Reference | Meaning |
|---|---|
| 4956743 | 5/9 Secondary reference National Oil Well Dba Iec Baylor |
NSN 5306-01-190-1503 is a Bolt,shear, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-190-1503 has 1 manufacturer part number on file: G4956743 (National Oilwell Varco Inc Dba National Oilwell).
Key specifications for G4956743: Head Height: 0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Fastener Length: 5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM IN; Thread Length: 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. 15 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.