The Bolt,shear, cataloged under National Stock Number 5306-00-938-6624, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fairchild Fasteners Europe - Vsd Gmbh. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-938-6624 |
| Primary Part Number | MS21250-05026 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fairchild Fasteners Europe - Vsd Gmbh |
| Status | ACTIVE |
| Extended Washer Thickness | 0.082 INCHES NOMINAL IN |
| Head Height | 0.348 INCHES NOMINAL IN |
| Fastener Length | 2.224 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Thread Length | 0.589 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OR STEEL COMP 4140 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 |
|---|---|
| MS21250-05026 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| MS21250-05026 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21250-05026 | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| MS21250-05026 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MS21250-05026 | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA) |
| MS21250-05026 | Howmet Global Fastening Systems Inc (USA) |
| MS21250-05026 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VFK100G-05026 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21250-05026 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| MS21250-05026 | 5/9 Secondary reference Chandler Craftsman Controls |
| MS21250-05026 | 5/9 Secondary reference U.S. Government activity |
| MS21250-05026 | 5/9 Secondary reference U.S. Government activity |
| MS21250-05026 | 3/2 Design control — primary reference U.S. Government activity |
| MS21250-05026 | 5/2 Secondary reference U.S. Government activity |
| MS21250-05026 | 5/9 Secondary reference Mercury Aerospace Fasteners Inc |
| 5306PL1937918 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS21250-05026 | 5/9 Secondary reference U.S. Government activity |
| MS21250-050-26 | 5/9 Secondary reference Allen Mfg Co Sub of Chicago Pneumatic Tool Co |
NSN 5306-00-938-6624 is a Bolt,shear, manufactured by Fairchild Fasteners Europe - Vsd Gmbh, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-938-6624 has 9 manufacturer part numbers on file: MS21250-05026 (Fairchild Fasteners Europe - Vsd Gmbh), MS21250-05026 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MS21250-05026 (J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings), MS21250-05026 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MS21250-05026 (All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners) and 4 more.
Key specifications for MS21250-05026: Extended Washer Thickness: 0.082 INCHES NOMINAL IN; Head Height: 0.348 INCHES NOMINAL IN; Fastener Length: 2.224 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.