The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-350-8233, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-350-8233 |
| Primary Part Number | DF33003-9D26 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Fastener Length | 2.335 INCHES MINIMUM AND 2.365 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.725 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.901 INCHES NOMINAL IN |
| Grip Diameter | 0.5610 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.216 INCHES MINIMUM AND 2.236 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 |
|---|---|
| X409-9D26 | Huck International, Inc (USA) |
| PBF1420-9D26 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB209-9D26 | Hi-Shear Corporation (USA) |
| AIC1653-9D26 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SII1188-9D26 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 03A098-9D26 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| MB209-9D26 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VCJ0001-9D26 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 123709-9D26 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 03A098-9D26 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| DF33003-9D26 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| VS3319-9D26 | 5/2 Secondary reference U.S. Government activity |
| 123709-9D26 | 5/2 Secondary reference U.S. Government activity |
| DF33003-9D26 | 5/9 Secondary reference U.S. Government activity |
| X409-9D26 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-350-8233 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-350-8233 has 11 manufacturer part numbers on file: X409-9D26 (Huck International, Inc), PBF1420-9D26 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MB209-9D26 (Hi-Shear Corporation), AIC1653-9D26 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), SII1188-9D26 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 6 more.
Key specifications for DF33003-9D26: Head Height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Fastener Length: 2.335 INCHES MINIMUM AND 2.365 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.725 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.