PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

139393Bolt,internally Relieved Body

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 5306-00-208-7705 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-208-7705 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-208-7705. Primary manufacturer part number: 139393.
Features
  • Bolt,internally Relieved Body — FSC 5306
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Hole Diameter: 0.070 INCHES NOMINAL IN
  • Head Height: 0.350 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Length: 0.320 INCHES MINIMUM IN
  • Thread Class: 2A A
  • Width Between Flats: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-208-7705, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-208-7705
Primary Part Number139393
Item NameBolt,internally Relieved Body
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusCANCELLED
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Hole Diameter0.070 INCHES NOMINAL IN
Head Height0.350 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Length0.320 INCHES MINIMUM IN
Thread Class2A A
Width Between Flats0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
Hole Configuration StyleHEXAGON LONGITUDINAL HOLE
Concentric Hole Diameter0.328 INCHES NOMINAL IN
Nominal Thread Diameter0.500 INCHES IN
Thread Series DesignatorUNJEF
Distance From Head Largest Bearing Surface to Shank Hole Center0.200 INCHES NOMINAL FIRST HOLE IN
Style DesignatorCONCENTRIC HOLE UNTHREADED
Thread Quantity Per Inch28
Shank Unthreaded Hole Diameter0.125 INCHES NOMINAL FIRST HOLE IN
Concentric Hole Depth0.870 INCHES NOMINAL IN
Hole TypeDRILLED
Hole Quantity6
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
9540-00-251-2595 INTERCHANGEABLE
Angle,structural
2910-01-643-8242139393 INTERCHANGEABLE
Filter Assembly,fluid
E. Friedman Associates, Inc.
Cross-Reference Index
Part NumberManufacturer
139393 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
Related Parts
9540-00-251-2595INTERCHANGEABLE
ANGLE,STRUCTURAL
2910-01-643-8242INTERCHANGEABLE
FILTER ASSEMBLY,FLUID
139393

Frequently Asked Questions

What is NSN 5306-00-208-7705?

NSN 5306-00-208-7705 is a Bolt,internally Relieved Body, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-208-7705?

NSN 5306-00-208-7705 has 1 cross-referenced part number: 139393 (Curtiss-Wright Controls, Inc. Div Actuation Division).

What NSN replaces 5306-00-208-7705?

There are 2 known substitutes for 5306-00-208-7705: 9540-00-251-2595, 2910-01-643-8242. Verify interchangeability with system specifications before substitution.

What are the specifications of 139393?

Key specifications for 139393: Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Hole Diameter: 0.070 INCHES NOMINAL IN; Head Height: 0.350 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-208-7705 still in active supply?

NSN 5306-00-208-7705 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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