The Bolt,shear, cataloged under National Stock Number 5306-01-368-8043, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-368-8043 |
| Primary Part Number | ST3M753L7H19 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Head Height | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Fastener Length | 1.877 INCHES MINIMUM AND 1.907 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN |
| Thread Length | 0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Hole Configuration Style | SPLINE |
| Material Document and Classification | AMS5629 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.177 INCHES MINIMUM AND 1.197 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.340 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN |
| Grip Diameter | 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 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 |
|---|---|
| ST3M753L7H19 | Huck International, Inc (USA) |
| ST3M753L7H19 | Hi-Shear Corporation (USA) |
| ST3M753L7H19 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 122897L7H19 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M753L7H19 | Heartland Precision Fasteners Inc (USA) |
| ST3M753L7H19 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC763L7H19 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M753L7H19 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M753L7H19 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M753L7H19 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| S343L7H19 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 122897L7H19 | 5/9 Secondary reference Sps Technologies Inc |
| VS3190L7H19 | 5/9 Secondary reference U.S. Government activity |
| PBF 1267L7H19 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| VFK600L7H19 | C/1 Advisory reference — outside the item-of-supply concept Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| 122897L7H19 | 5/2 Secondary reference U.S. Government activity |
| MB156L7H19 | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
NSN 5306-01-368-8043 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-368-8043 has 10 manufacturer part numbers on file: ST3M753L7H19 (Huck International, Inc), ST3M753L7H19 (Hi-Shear Corporation), ST3M753L7H19 (Fastener Innovation Technology, Inc. Dba F I T), 122897L7H19 (Sps Technologies, Llc Dba PB Fasteners), ST3M753L7H19 (Heartland Precision Fasteners Inc) and 5 more.
Key specifications for ST3M753L7H19: Extended Washer Thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Head Height: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Fastener Length: 1.877 INCHES MINIMUM AND 1.907 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.