The Bolt,shear, cataloged under National Stock Number 5306-00-403-1520, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-403-1520 |
| Primary Part Number | MS21250-05004 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.082 INCHES NOMINAL IN |
| Head Height | 0.348 INCHES NOMINAL IN |
| Fastener Length | 0.849 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 |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 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 |
|---|---|
| MS21250-05004 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MS21250-05004 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VFK100G-05004 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21250-05004 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21250-05004 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| MS21250-5004 | Howmet Global Fastening Systems Inc (USA) |
| MS21250-05004 | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA) |
| Reference | Meaning |
|---|---|
| MS21250-05004 | 5/9 Secondary reference Mercury Aerospace Fasteners Inc |
| MS21250-05004 | 5/9 Secondary reference U.S. Government activity |
| MS21250-05004 | 5/2 Secondary reference U.S. Government activity |
| MS21250-05004 | 3/2 Design control — primary reference U.S. Government activity |
| MS21250-05004 | 5/9 Secondary reference U.S. Government activity |
| MS21250-05004 | 5/9 Secondary reference Allen Mfg Co Sub of Chicago Pneumatic Tool Co |
| MS21250-05004 | 5/2 Secondary reference U.S. Government activity |
| 5306PL0959382 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-00-403-1520 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-403-1520 has 7 manufacturer part numbers on file: MS21250-05004 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MS21250-05004 (Sps Technologies, Llc Dba PB Fasteners), VFK100G-05004 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MS21250-05004 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MS21250-05004 (Fairchild Fasteners Europe - Vsd Gmbh) and 2 more.
Key specifications for MS21250-05004: Extended Washer Thickness: 0.082 INCHES NOMINAL IN; Head Height: 0.348 INCHES NOMINAL IN; Fastener Length: 0.849 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.