The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-240-4027, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 16 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-240-4027 |
| Primary Part Number | ST3M453-6-9 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Fastener Length | 1.062 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Width Between Flats | 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST3M453-6-9 | Saturn Fasteners Inc (USA) |
| S11-1060-6-9 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M453-6-9 | Heartland Precision Fasteners Inc (USA) |
| ST3M453-6-9 | Houston Precision Fasteners I Lp (USA) |
| GS1016-6-9 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11825-6-9 | Reid Products Inc. Dba Reid Products Inc (USA) |
| FIT7047-6-9 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| PBF1253-6-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23029-6-9 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC753-6-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 109453-6-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| WC453-6-9 | West Coast Aerospace, Inc. (USA) |
| SLB252-6-9 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BM17019-6-9 | Huck International, Inc (USA) |
| VS3204-6-9 | Howmet Global Fastening Systems Inc (USA) |
| MB61-6-9 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| VS3204-6-9 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-6-9 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| ST3M453-6-9 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| ST3M453-6-9 | 5/9 Secondary reference Huck International, Inc |
| KS3020-6-9 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| ST3M453-6-9 | 5/9 Secondary reference Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc |
| ST3M453-6-9 | 3/9 Design control — primary reference U.S. Government activity |
| ST3M453-6-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| MB61-6-9 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| 109453-6-9 | 5/2 Secondary reference U.S. Government activity |
| ST3M453-6-9 | 5/9 Secondary reference Sps Technologies Inc |
| S353-6-9 | 5/9 Secondary reference Huck International, Inc |
| MA5453-6-9 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| S353-6-9 | 5/9 Secondary reference U.S. Government activity |
| BM17019-6-9 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-240-4027 is a Bolt,close Tolerance, manufactured by Saturn Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-240-4027 has 16 manufacturer part numbers on file: ST3M453-6-9 (Saturn Fasteners Inc), S11-1060-6-9 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M453-6-9 (Heartland Precision Fasteners Inc), ST3M453-6-9 (Houston Precision Fasteners I Lp), GS1016-6-9 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 11 more.
Key specifications for ST3M453-6-9: Head Height: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Fastener Length: 1.062 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.490 INCHES MINIMUM AND 0.557 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.