The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-527-2205, 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 19 specifications, cited from the U.S. Government catalog. The record lists 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-527-2205 |
| Primary Part Number | ST3M453-10D40 |
| 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 | 3.261 INCHES MINIMUM AND 3.308 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-AA-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.777 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629, PH13-8-0 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.6250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.490 INCHES MINIMUM AND 2.510 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 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.142 INCHES MINIMUM AND 3.179 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| FIT7047-10D40 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| GS1016-10D40 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| PBF125310D40 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M453-10D40 PRIMARY | The Boeing Company Div Defense (USA) |
| VS3204-10D40 | Howmet Global Fastening Systems Inc (USA) |
| A1C753-10D40 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VAL23029-10D40 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 109453-10D40 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| MB61-10D40 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BM17019-10D40 | Huck International, Inc (USA) |
| S11-1060-10D40 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB61-10D40 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 109453-10D40 | 5/2 Secondary reference U.S. Government activity |
| 109453-10D40 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-527-2205 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-527-2205 has 12 manufacturer part numbers on file: FIT7047-10D40 (Fastener Innovation Technology, Inc. Dba F I T), GS1016-10D40 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), PBF125310D40 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M453-10D40 (The Boeing Company Div Defense), VS3204-10D40 (Howmet Global Fastening Systems Inc) and 7 more.
Key specifications for ST3M453-10D40: Head Height: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Fastener Length: 3.261 INCHES MINIMUM AND 3.308 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS-AA-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.777 INCHES NOMINAL IN. 19 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.