The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-625-7350, 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 16 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-625-7350 |
| Primary Part Number | ST3M453-3D13 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Point Diameter | 0.1900 INCHES NOMINAL IN |
| Head Height | 0.140 INCHES NOMINAL IN |
| Fastener Length | 1.127 INCHES MINIMUM AND 1.174 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.331 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM RING IN |
| Material Document and Classification | AMS 5629 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.1900 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 1.875 INCHES NOMINAL IN |
| Width Between Flats | 0.376 INCHES NOMINAL IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | R3A |
| Thread Quantity Per Inch | N32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM POINT IN |
| 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 |
|---|---|
| ST3M453-3D13 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M453-3D13 | Heartland Precision Fasteners Inc (USA) |
| ST3M453-3D13 | Saturn Fasteners Inc (USA) |
| ST3M453-3D13 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M453-3D13 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M453-3D13 | Houston Precision Fasteners I Lp (USA) |
| ST3M453-3D13 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M453-3D13 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M453-3D13 | Howmet Global Fastening Systems Inc (USA) |
| ST3M453-3D13 | West Coast Aerospace, Inc. (USA) |
| ST3M453-3D13 | Huck International, Inc (USA) |
| ST3M453-3D13 | Hi-Shear Corporation (USA) |
| ST3M453-3D13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M453-3D13 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M453-3D13 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M453-3D13 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST3M453-3D13 | 5/2 Secondary reference U.S. Government activity |
| ST3M453-3D13 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-625-7350 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-625-7350 has 16 manufacturer part numbers on file: ST3M453-3D13 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), ST3M453-3D13 (Heartland Precision Fasteners Inc), ST3M453-3D13 (Saturn Fasteners Inc), ST3M453-3D13 (Sps Technologies, Llc Dba PB Fasteners), ST3M453-3D13 (Reid Products Inc. Dba Reid Products Inc) and 11 more.
Key specifications for ST3M453-3D13: Point Diameter: 0.1900 INCHES NOMINAL IN; Head Height: 0.140 INCHES NOMINAL IN; Fastener Length: 1.127 INCHES MINIMUM AND 1.174 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED STD 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.