PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3X138Bolt,shoulder

Meritor Heavy Vehicle Systems, Llc · NSN 5306-00-206-0365 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-206-0365 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-206-0365. Primary manufacturer part number: 3X138.
Features
  • Bolt,shoulder — FSC 5306
  • Shoulder Length: 1.000 INCHES NOMINAL FIRST SHOULDER IN
  • Width Between Flats: 0.938 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.625 INCHES IN
  • Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
  • Material: STEEL COMP 3135 OVERALL
  • Thread Quantity Per Inch: 18
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 3135 Overall construction
General Description

The Bolt,shoulder, cataloged under National Stock Number 5306-00-206-0365, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-206-0365
Primary Part Number3X138
Item NameBolt,shoulder
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerMeritor Heavy Vehicle Systems, Llc
StatusACTIVE
Shoulder Length1.000 INCHES NOMINAL FIRST SHOULDER IN
Width Between Flats0.938 INCHES NOMINAL IN
Nominal Thread Diameter0.625 INCHES IN
Material Document and ClassificationQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
MaterialSTEEL COMP 3135 OVERALL
Thread Quantity Per Inch18
Hardness Rating27.6 ROCKWELL C MINIMUM AND 34.3 ROCKWELL C MAXIMUM OVERALL
Shoulder ShapeROUND FIRST SHOULDER
Head StyleHEXAGON
Shoulder Diameter0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM FIRST SHOULDER IN
Thread Class3A A
Head Height0.469 INCHES NOMINAL IN
Minimum Yield Strength110000 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND
Fastener Length1.875 INCHES NOMINAL IN
Thread Length0.875 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-190-400110975 INTERCHANGEABLE
Screw,machine
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
3X138 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
3X138 Available Truck Co (USA)
00479 PRIMARY Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
Related Parts
5305-01-190-4001INTERCHANGEABLE
SCREW,MACHINE
10975

Frequently Asked Questions

What is NSN 5306-00-206-0365?

NSN 5306-00-206-0365 is a Bolt,shoulder, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-206-0365?

NSN 5306-00-206-0365 has 3 cross-referenced part numbers: 3X138 (Meritor Heavy Vehicle Systems, Llc), 3X138 (Available Truck Co), 00479 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).

What NSN replaces 5306-00-206-0365?

There is 1 known substitute for 5306-00-206-0365: 5305-01-190-4001. Verify interchangeability with system specifications before substitution.

What are the specifications of 3X138?

Key specifications for 3X138: Shoulder Length: 1.000 INCHES NOMINAL FIRST SHOULDER IN; Width Between Flats: 0.938 INCHES NOMINAL IN; Nominal Thread Diameter: 0.625 INCHES IN; Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.

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