PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25818Screw,cap,socket Head

Paccar Winch Inc Dba Paccar Winch Division · NSN 5305-01-423-2405 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-423-2405 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-423-2405. Primary manufacturer part number: 25818.
Features
  • Screw,cap,socket Head — FSC 5305
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: AISI, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Fastener Length: 1.000 INCHES NOMINAL IN
  • Internal Drive Style: HEXAGON
  • Nominal Thread Diameter: 0.500 INCHES IN
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 5305-01-423-2405, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Paccar Winch Inc Dba Paccar Winch Division. Government technical data includes 7 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-423-2405
Primary Part Number25818
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerPaccar Winch Inc Dba Paccar Winch Division
StatusACTIVE
Width Across Flats0.250 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationAISI, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Fastener Length1.000 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
Nominal Thread Diameter0.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5210-00-204-9115DHG18.258 INTERCHANGEABLE
Gage,height
L.s. Starrett Company (the) Div Tool Division
5340-00-244-6636 INTERCHANGEABLE
Clevis,rod End
5325-00-732-77849018457 INTERCHANGEABLE
Insert,screw Thread
Us Army Aviation and Missile Command
4730-01-057-5089SAE J531 8 130109AC (CAD) INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
5930-01-270-059739675 INTERCHANGEABLE
Switch Subassembly
Setra Systems, Inc. Dba Gems Sensors
5120-01-565-1304 INTERCHANGEABLE
Wrench,ratchet
Cross-Reference Index
Part NumberManufacturer
25818 Paccar Winch Inc Dba Paccar Winch Division (USA)
Related Parts
5210-00-204-9115INTERCHANGEABLE
GAGE,HEIGHT
DHG18.258
5340-00-244-6636INTERCHANGEABLE
CLEVIS,ROD END
5325-00-732-7784INTERCHANGEABLE
INSERT,SCREW THREAD
9018457
4730-01-057-5089INTERCHANGEABLE
PLUG,PIPE
SAE J531 8 130109AC (CAD)
5930-01-270-0597INTERCHANGEABLE
SWITCH SUBASSEMBLY
39675
5120-01-565-1304INTERCHANGEABLE
WRENCH,RATCHET

Frequently Asked Questions

What is NSN 5305-01-423-2405?

NSN 5305-01-423-2405 is a Screw,cap,socket Head, manufactured by Paccar Winch Inc Dba Paccar Winch Division, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-423-2405?

NSN 5305-01-423-2405 has 1 cross-referenced part number: 25818 (Paccar Winch Inc Dba Paccar Winch Division).

What NSN replaces 5305-01-423-2405?

There are 6 known substitutes for 5305-01-423-2405: 5210-00-204-9115, 5340-00-244-6636, 5325-00-732-7784 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25818?

Key specifications for 25818: Width Across Flats: 0.250 INCHES NOMINAL IN; Material: STEEL OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: AISI, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com