The Bolt,shoulder, cataloged under National Stock Number 5306-01-143-2816, 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 17 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-143-2816 |
| Primary Part Number | MB88-3-44 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 3.065 INCHES MINIMUM AND 3.112 INCHES MAXIMUM IN |
| Shoulder Length | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.376 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| ST3M497-3-44 | J M Precision Inc (USA) |
| MB88-3-44 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VAL23607-3-44 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| S11-1061-3-44 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M497-3-44 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF1254-3-44 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M497-3-44 PRIMARY | The Boeing Company Div Defense (USA) |
| HP5497-3-44 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| MB88-3-44 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| ST3M497-3-44 | 5/9 Secondary reference U.S. Government activity |
| VS3037-3-44 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 109450-3-44 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M497-3-44 | 5/2 Secondary reference U.S. Government activity |
| ST3M497-3-44 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| VS3037-3-44 | 5/9 Secondary reference U.S. Government activity |
| 109450-3-44 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| MA5497-3-44 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| BM17019-3-44X | 5/9 Secondary reference U.S. Government activity |
| BM17019-3-44X | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| ST3M497-3-44 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-143-2816 is a Bolt,shoulder, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-143-2816 has 9 manufacturer part numbers on file: ST3M497-3-44 (J M Precision Inc), MB88-3-44 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), VAL23607-3-44 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), S11-1061-3-44 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M497-3-44 (Sps Technologies, Llc Dba PB Fasteners) and 4 more.
Key specifications for MB88-3-44: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 3.065 INCHES MINIMUM AND 3.112 INCHES MAXIMUM IN; Shoulder Length: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.