The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-485-5750, 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 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-485-5750 |
| Primary Part Number | ST3M753-10-38 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.090 INCHES NOMINAL IN |
| Head Height | 0.562 INCHES NOMINAL IN |
| Fastener Length | 3.053 INCHES MINIMUM AND 3.073 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.153 INCHES MINIMUM AND 1.163 INCHES MAXIMUM IN |
| Thread Length | 0.912 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.375 INCHES NOMINAL IN |
| Head Minor Diameter | 0.673 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN |
| Grip Diameter | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| MB156-10-38 | Hi-Shear Corporation (USA) |
| ST3M753-10-38 PRIMARY | The Boeing Company Div Defense (USA) |
| AIC763-10-38 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| S343-10-38 | Huck International, Inc (USA) |
| ST3M753-10-38 | The Boeing Company Div Services (USA) |
| VS3190-10-38 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 122897-10-38 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF 1267-10-38 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M753-10-38 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HP7753-10-38 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M753-10-38 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M753-10-38 | Houston Precision Fasteners I Lp (USA) |
| GS1032-10-38 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| SLB255-10-38 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| VFK600-10-38 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| 122897-10-38 | 5/2 Secondary reference U.S. Government activity |
| MB156-10-38 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| 11829-10-38 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| VS3190-10-38 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-485-5750 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-485-5750 has 14 manufacturer part numbers on file: MB156-10-38 (Hi-Shear Corporation), ST3M753-10-38 (The Boeing Company Div Defense), AIC763-10-38 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), S343-10-38 (Huck International, Inc), ST3M753-10-38 (The Boeing Company Div Services) and 9 more.
Key specifications for ST3M753-10-38: Extended Washer Thickness: 0.090 INCHES NOMINAL IN; Head Height: 0.562 INCHES NOMINAL IN; Fastener Length: 3.053 INCHES MINIMUM AND 3.073 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.