PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102125Screw,cap,hexagon Head

Mcculloch Corp · NSN 5305-00-021-3673 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-021-3673 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-021-3673. Primary manufacturer part number: 102125.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Width Between Flats: 0.437 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Thread Quantity Per Inch: 20
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Head Height: 0.187 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-3673, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mcculloch Corp. Government technical data includes 12 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-021-3673
Primary Part Number102125
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMcculloch Corp
StatusACTIVE
Width Between Flats0.437 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OR ZINC OVERALL
Thread Quantity Per Inch20
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Head Height0.187 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Thread Length0.750 INCHES MINIMUM IN
Thread Class2A A
Head StyleHEXAGON
Fastener Length1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1650-00-705-9498WSP11-417B INTERCHANGEABLE
Cylinder Assembly,actuating,line
Templeton Kenly and Co Inc
6680-00-988-6999 INTERCHANGEABLE
Indicator,sight,liquid
5950-01-181-1650989112-14B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
4720-01-448-6847102125 INTERCHANGEABLE
Hose,nonmetallic
Bauer Equipment America, Inc.
5915-01-524-53557988-01 INTERCHANGEABLE
Filter,band Pass
Howell Laboratories Inc Dba Howell Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
102125 PRIMARY Mcculloch Corp (USA)
Related Parts
1650-00-705-9498INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
WSP11-417B
6680-00-988-6999INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
5950-01-181-1650INTERCHANGEABLE
COIL,RADIO FREQUENCY
989112-14B
4720-01-448-6847INTERCHANGEABLE
HOSE,NONMETALLIC
102125
5915-01-524-5355INTERCHANGEABLE
FILTER,BAND PASS
7988-01

Frequently Asked Questions

What is NSN 5305-00-021-3673?

NSN 5305-00-021-3673 is a Screw,cap,hexagon Head, manufactured by Mcculloch Corp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-021-3673?

NSN 5305-00-021-3673 has 1 cross-referenced part number: 102125 (Mcculloch Corp).

What NSN replaces 5305-00-021-3673?

There are 5 known substitutes for 5305-00-021-3673: 1650-00-705-9498, 6680-00-988-6999, 5950-01-181-1650 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 102125?

Key specifications for 102125: Width Between Flats: 0.437 INCHES NOMINAL IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OR ZINC OVERALL; Thread Quantity Per Inch: 20. 12 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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