The Bolt,shear, cataloged under National Stock Number 5306-01-326-0527, 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 23 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-326-0527 |
| Primary Part Number | VS3190-4H8 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Head Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 0.953 INCHES MINIMUM AND 0.983 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Thread Length | 0.468 INCHES MINIMUM IN |
| Hole Configuration Style | ROUND LONGITUDINAL HOLE |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.082 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| 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 |
|---|---|
| VS3190-4H8 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| VFK600-4H8 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1032-4H8 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M753-4H8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M753-4H8 | Heartland Precision Fasteners Inc (USA) |
| MB156-4H8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PBF1267-4H8 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB156-4H8 PRIMARY | Hi-Shear Corporation (USA) |
| AIC763-4H8 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| S343-4H8 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M753-4H8 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| ST3M753-4H8 | 5/9 Secondary reference Sps Technologies Inc |
| 122897-4H8 | 3/2 Design control — primary reference U.S. Government activity |
| VS3190-4H8 | 5/9 Secondary reference U.S. Government activity |
| S343-4H8 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-326-0527 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-326-0527 has 10 manufacturer part numbers on file: VS3190-4H8 (Howmet Global Fastening Systems Inc), VFK600-4H8 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GS1032-4H8 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), ST3M753-4H8 (Fastener Innovation Technology, Inc. Dba F I T), ST3M753-4H8 (Heartland Precision Fasteners Inc) and 5 more.
Key specifications for VS3190-4H8: Extended Washer Thickness: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Head Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 0.953 INCHES MINIMUM AND 0.983 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 23 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.