PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138-2407Screw,cap,socket Head

Caterpillar Inc Div Caterpillar Defense · NSN 5305-01-548-0551 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-548-0551 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-548-0551. Primary manufacturer part number: 138-2407.
Features
  • Screw,cap,socket Head — FSC 5305
  • Material: STEEL OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Quantity Per Inch: 18
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Thread Length: 0.750 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-548-0551, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-548-0551
Primary Part Number138-2407
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch18
Nominal Thread Diameter0.312 INCHES IN
Thread DirectionRIGHT-HAND
Thread Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3020-00-225-6961100794 INTERCHANGEABLE
Gear,spur
Astronautics Corporation of America
4730-00-277-5736SAE J530 4-4 130138B INTERCHANGEABLE
Coupling,pipe
Sae International Dba Sae International
1680-00-343-5668100794 INTERCHANGEABLE
Drive Assy,gear Gea
Meggitt North Hollywood Inc
5310-01-025-6830102430 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Dana Off Highway Products, Llc
5310-01-077-1809100794 INTERCHANGEABLE
Washer,lock
Naval Inventory Control Point Mechanicsburg
5985-01-352-01901382407 INTERCHANGEABLE
Drive,antenna
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
100794 Paccar Winch Inc Dba Paccar Winch Division (USA)
138-2407 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
3020-00-225-6961INTERCHANGEABLE
GEAR,SPUR
100794
4730-00-277-5736INTERCHANGEABLE
COUPLING,PIPE
SAE J530 4-4 130138B
1680-00-343-5668INTERCHANGEABLE
DRIVE ASSY,GEAR GEA
100794
5310-01-025-6830INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
102430
5310-01-077-1809INTERCHANGEABLE
WASHER,LOCK
100794
5985-01-352-0190INTERCHANGEABLE
DRIVE,ANTENNA
1382407

Frequently Asked Questions

What is NSN 5305-01-548-0551?

NSN 5305-01-548-0551 is a Screw,cap,socket Head, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-548-0551?

NSN 5305-01-548-0551 has 2 cross-referenced part numbers: 100794 (Paccar Winch Inc Dba Paccar Winch Division), 138-2407 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5305-01-548-0551?

There are 6 known substitutes for 5305-01-548-0551: 3020-00-225-6961, 4730-00-277-5736, 1680-00-343-5668 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138-2407?

Key specifications for 138-2407: Special Features: SPECIFIC MATERIAL IS GRADE 5 STEEL;NHA IS HYDRAULIC CONTROL; Material: STEEL OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Part Name Assigned by Controlling Agency: CAPSCREW. 9 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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