The Bolt,shoulder, cataloged under National Stock Number 5306-01-047-0332, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-047-0332 |
| Primary Part Number | MB87-5-18 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.072 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| Head Height | 0.338 INCHES MINIMUM AND 0.358 INCHES MAXIMUM IN |
| Fastener Length | 1.661 INCHES MINIMUM AND 1.691 INCHES MAXIMUM IN |
| Shoulder Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM FIRST SHOULDER IN |
| Extended Washer Diameter | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.526 INCHES MINIMUM AND 0.576 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL 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 |
|---|---|
| MB87-5-18 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VAL23033-5-18X PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1652-5-18 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC473-5-18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M607-5-18 | Reid Products Inc. Dba Reid Products Inc (USA) |
| S11-1063-5-18 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB87-5-18 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| ST3M607-5-18 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 74328-5-18Y | 3/2 Design control — primary reference U.S. Government activity |
| VS3061-5-18 | 3/2 Design control — primary reference U.S. Government activity |
| 74328-5-18Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM3326-5-18Y | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-047-0332 is a Bolt,shoulder, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-047-0332 has 7 manufacturer part numbers on file: MB87-5-18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), VAL23033-5-18X (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF1652-5-18 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC473-5-18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), ST3M607-5-18 (Reid Products Inc. Dba Reid Products Inc) and 2 more.
Key specifications for MB87-5-18: Extended Washer Thickness: 0.072 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN; Head Height: 0.338 INCHES MINIMUM AND 0.358 INCHES MAXIMUM IN; Fastener Length: 1.661 INCHES MINIMUM AND 1.691 INCHES MAXIMUM IN; Shoulder Length: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM FIRST SHOULDER IN. 16 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.