The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-297-7539, 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 17 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-297-7539 |
| Primary Part Number | ST3M453-10-31 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Fastener Length | 2.699 INCHES MINIMUM AND 2.746 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.751 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM IN |
| Width Between Flats | 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| VAL23029-10-31 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1253-10-31 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB61-10-31 | Hi-Shear Corporation (USA) |
| ST3M453-10-31 PRIMARY | The Boeing Company Div Defense (USA) |
| GS1016-10-31 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11825-10-31 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HP5453-10-31 | Heartland Precision Fasteners Inc (USA) |
| SLB252-10-31 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| AIC753-10-31 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| S11-1060-10-31 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M453-10-31 | Houston Precision Fasteners I Lp (USA) |
| 109453-10-31 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| MB61-10-31 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BM17019-10-31 | Huck International, Inc (USA) |
| VS3204-10-31 | Howmet Global Fastening Systems Inc (USA) |
| ST3M453-10-31 | Saturn Fasteners Inc (USA) |
| WC453-10-31 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S353-10-31 | 5/9 Secondary reference U.S. Government activity |
| KS3020-10-31 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| S353-10-31 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| MA5453-10-31 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| BM17019-10-31 | 5/9 Secondary reference U.S. Government activity |
| 109453-10-31 | 5/2 Secondary reference U.S. Government activity |
| VS3204-10-31 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-297-7539 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-297-7539 has 17 manufacturer part numbers on file: VAL23029-10-31 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF1253-10-31 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MB61-10-31 (Hi-Shear Corporation), ST3M453-10-31 (The Boeing Company Div Defense), GS1016-10-31 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 12 more.
Key specifications for ST3M453-10-31: Head Height: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Fastener Length: 2.699 INCHES MINIMUM AND 2.746 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.751 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN. 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.