The Bolt,shoulder, cataloged under National Stock Number 5306-01-211-1445, 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 20 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-211-1445 |
| Primary Part Number | ST3M607-7-20 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Head Height | 0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Fastener Length | 1.940 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN |
| Shoulder Length | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.680 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.512 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 |
| 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 |
|---|---|
| MB87-7-20 | Hi-Shear Corporation (USA) |
| MB87-7-20 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M607-7-20 PRIMARY | The Boeing Company Div Defense (USA) |
| S11-1063-7-20 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VAL23033-7-20X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M607-7-20 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 74328-7-20Y | 5/2 Secondary reference U.S. Government activity |
| BM3326-7-20Y | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BM3326-7-20Y | 5/9 Secondary reference U.S. Government activity |
| 74328-7-20Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS3061-7-20 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-211-1445 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-211-1445 has 6 manufacturer part numbers on file: MB87-7-20 (Hi-Shear Corporation), MB87-7-20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M607-7-20 (The Boeing Company Div Defense), S11-1063-7-20 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), VAL23033-7-20X (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 1 more.
Key specifications for ST3M607-7-20: Extended Washer Thickness: 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Head Height: 0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN; Fastener Length: 1.940 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN; Shoulder Length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM FIRST SHOULDER IN. 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.