The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-133-2194, 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 14 specifications, cited from the U.S. Government catalog. The record lists 15 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-133-2194 |
| Primary Part Number | ST3M453-5-15 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Fastener Length | 1.389 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN |
| Thread Length | 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Material Document and Classification | 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN |
| Width Between Flats | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| ST3M453-5-15 PRIMARY | The Boeing Company Div Defense (USA) |
| BM17019-5-15 | Huck International, Inc (USA) |
| HP5453-5-15 | Heartland Precision Fasteners Inc (USA) |
| MB61-5-15 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PBF1253-5-15 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M453-5-15 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M453-5-15 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 11825-5-15 | Reid Products Inc. Dba Reid Products Inc (USA) |
| MB61-5-15 | Hi-Shear Corporation (USA) |
| ST3M453-5-15 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC753-5-15 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1016-5-15 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| VAL23029-5-15 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| S11-1060-5-15 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| VS3204-5-15 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| S353-5-15 | 5/9 Secondary reference Huck International, Inc |
| S353-5-15 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-5-15 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M453-5-15 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| BM17019-5-15 | 5/9 Secondary reference U.S. Government activity |
| VS3204-5-15 | 5/9 Secondary reference U.S. Government activity |
| 109453-5-15 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| ST3M453-5-15 | 5/2 Secondary reference U.S. Government activity |
| 109453-5-15 | 5/2 Secondary reference U.S. Government activity |
| 10115914 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MA5453-5-15 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| KS3020-5-15 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
NSN 5306-01-133-2194 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-133-2194 has 15 manufacturer part numbers on file: ST3M453-5-15 (The Boeing Company Div Defense), BM17019-5-15 (Huck International, Inc), HP5453-5-15 (Heartland Precision Fasteners Inc), MB61-5-15 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), PBF1253-5-15 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 10 more.
Key specifications for ST3M453-5-15: Head Height: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Fastener Length: 1.389 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN; Thread Length: 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN; Material Document and Classification: 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 14 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.