The Bolt,shoulder, cataloged under National Stock Number 5306-01-486-0488, 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 12 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-486-0488 |
| Primary Part Number | MB88-4-25 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Head Height | 0.154 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Shoulder Length | 1.5525 INCHES MINIMUM AND 1.5725 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| PBF1254-4-25 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HP5497-4-25 | Heartland Precision Fasteners Inc (USA) |
| ST3M497-4-25 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| S11-1061-4-25 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VS3037-4-25 | Howmet Global Fastening Systems Inc (USA) |
| VAL23607-4-25 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB88-4-25 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| MB88-4-25 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 109450-4-25 | 5/2 Secondary reference U.S. Government activity |
| ST3M497-4-25 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 109450-4-25 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-486-0488 is a Bolt,shoulder, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-486-0488 has 8 manufacturer part numbers on file: PBF1254-4-25 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HP5497-4-25 (Heartland Precision Fasteners Inc), ST3M497-4-25 (Fastener Innovation Technology, Inc. Dba F I T), S11-1061-4-25 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), VS3037-4-25 (Howmet Global Fastening Systems Inc) and 3 more.
Key specifications for MB88-4-25: Head Height: 0.154 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Shoulder Length: 1.5525 INCHES MINIMUM AND 1.5725 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. 12 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.