The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-050-9650, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-050-9650 |
| Primary Part Number | HP5453-3-11 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 1.003 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN |
| Thread Length | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 |
|---|---|
| US3204-3-11 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| ST3M453-3-11 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HP5453-3-11 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M453-3-11 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M453-3-11 | Howmet Global Fastening Systems Inc (USA) |
| ST3M453-3-11 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M453-3-11 | Huck International, Inc (USA) |
| ST3M453-3-11 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| MB61-3-11 | Satair A/s (DNK) |
| MB61-3-11 PRIMARY | Hi-Shear Corporation (USA) |
| VAL23029-3-11 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| ST3M453-3-11 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| MB61-3-11 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| US3204-3-11 | 5/9 Secondary reference U.S. Government activity |
| 11825-3-11 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| 109453-3-11 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| GS1016-3-11 | 5/9 Secondary reference B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace |
| AIC753-3-11 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| ST3M453-3-11 | 5/9 Secondary reference Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc |
| S353-3-11 | 5/9 Secondary reference U.S. Government activity |
| 109453-3-11 | 3/2 Design control — primary reference U.S. Government activity |
| BM17019-3-11 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-050-9650 is a Bolt,close Tolerance, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-050-9650 has 11 manufacturer part numbers on file: US3204-3-11 (Fairchild Fasteners Europe - Vsd Gmbh), ST3M453-3-11 (Sps Technologies, Llc Dba PB Fasteners), HP5453-3-11 (Heartland Precision Fasteners Inc), ST3M453-3-11 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M453-3-11 (Howmet Global Fastening Systems Inc) and 6 more.
Key specifications for HP5453-3-11: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 1.003 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN; Thread Length: 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES IN. 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.