The Bolt,shear, cataloged under National Stock Number 5306-01-294-6339, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-294-6339 |
| Primary Part Number | HS4144-4HL14 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Head Height | 0.300 INCHES NOMINAL IN |
| Fastener Length | 1.287 INCHES NOMINAL IN |
| Thread Length | 0.412 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.875 INCHES NOMINAL IN |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Grip Diameter | 0.750 INCHES NOMINAL IN |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| HS4144-4HL14 | The Boeing Company (USA) |
| AIC4144-4HL14 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HS4144-4HL14 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 73142-4HL-14 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-294-6339 is a Bolt,shear, manufactured by The Boeing Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-294-6339 has 2 manufacturer part numbers on file: HS4144-4HL14 (The Boeing Company), AIC4144-4HL14 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for HS4144-4HL14: Head Height: 0.300 INCHES NOMINAL IN; Fastener Length: 1.287 INCHES NOMINAL IN; Thread Length: 0.412 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN. 14 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.