The Bolt,shear, cataloged under National Stock Number 5306-01-308-2744, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-308-2744 |
| Primary Part Number | SS5211-8B16 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Head Height | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN |
| Fastener Length | 1.826 INCHES MINIMUM AND 1.856 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-13924 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN |
| Thread Length | 0.816 INCHES MINIMUM AND 0.866 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Width Between Flats | 0.5625 INCHES NOMINAL IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP E4340 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 |
|---|---|
| SS5211-8B16 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| SS5211-8B16 | Acufast Aircraft Products (USA) |
| SS5211-8B16 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| SS5211-8B16 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| SS5211-8B16 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SS5211-8B16 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SS5211-8B16 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| SS5211-8B16 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| SS5211-8B16 | 5/2 Secondary reference U.S. Government activity |
| SS5211-8B16 | 5/9 Secondary reference U.S. Government activity |
| SS5211-8B16 | 5/9 Secondary reference Mercury Aerospace Fasteners Inc |
NSN 5306-01-308-2744 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-308-2744 has 8 manufacturer part numbers on file: SS5211-8B16 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), SS5211-8B16 (Acufast Aircraft Products), SS5211-8B16 (Howmet Global Fastening Systems Inc), SS5211-8B16 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), SS5211-8B16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 3 more.
Key specifications for SS5211-8B16: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Head Height: 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN. 22 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.