The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-433-5834, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 18 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-433-5834 |
| Primary Part Number | AIC753-4D19 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| Fastener Length | 2.236 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.397 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.177 INCHES MINIMUM AND 1.197 INCHES MAXIMUM IN |
| Width Between Flats | 0.439 INCHES NOMINAL IN |
| Grip Diameter | 0.2480 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.125 INCHES MINIMUM AND 2.138 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST3M453-4D19 | Houston Precision Fasteners I Lp (USA) |
| VS3204-4D19 | Howmet Global Fastening Systems Inc (USA) |
| HP5453-4D19 | Heartland Precision Fasteners Inc (USA) |
| WC453-4D19 | West Coast Aerospace, Inc. (USA) |
| 11825-4D19 | Reid Products Inc. Dba Reid Products Inc (USA) |
| S11-1060-4D19 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB61-4D19 | Hi-Shear Corporation (USA) |
| GS1016-4D19 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| FIT7047-4D19 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| AIC753-4D19 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 109453-4D19 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| MB61-4D19 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VAL23029-4D19 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BM17019-4D19 | Huck International, Inc (USA) |
| PBF1253-4D19 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SLB252-4D19 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| MB81-4D19 | 5/9 Secondary reference Hi-Shear Corporation |
| VS9204-4D19 | 5/9 Secondary reference U.S. Government activity |
| BM17019-4D19 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-4D19 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 109453-4D19 | 5/2 Secondary reference U.S. Government activity |
| BM17019-4D19 | 5/9 Secondary reference Deutsch Co the |
NSN 5306-01-433-5834 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-433-5834 has 16 manufacturer part numbers on file: ST3M453-4D19 (Houston Precision Fasteners I Lp), VS3204-4D19 (Howmet Global Fastening Systems Inc), HP5453-4D19 (Heartland Precision Fasteners Inc), WC453-4D19 (West Coast Aerospace, Inc.), 11825-4D19 (Reid Products Inc. Dba Reid Products Inc) and 11 more.
Key specifications for AIC753-4D19: Head Height: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN; Fastener Length: 2.236 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.397 INCHES NOMINAL IN. 18 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.