PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

226666Screw,machine

Army, United States Department of the Dba Rock Island Arsenal Jmtc · NSN 5305-00-639-4747 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-639-4747 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-639-4747. Primary manufacturer part number: 226666.
Features
  • Screw,machine — FSC 5305
  • Nominal Thread Diameter: 0.125 INCHES IN
  • Screw Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
  • Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Head Style: FILLISTER
  • Thread Quantity Per Inch: 44
  • Head Diameter: 0.187 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-639-4747, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-639-4747
Primary Part Number226666
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerArmy, United States Department of the Dba Rock Island Arsenal Jmtc
StatusCANCELLED
Nominal Thread Diameter0.125 INCHES IN
Screw Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
Head Height0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Head StyleFILLISTER
Thread Quantity Per Inch44
Head Diameter0.187 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Thread Length0.205 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Screw MaterialCOPPER ALLOY
Internal Drive StyleCROSS RECESS TYPE 1
Nondefinitive Spec/std Data1 TYPE AND 4S STYLE
Thread DirectionRIGHT-HAND
Fastener Length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5305-00-297-3988 INTERCHANGEABLE
Screw,machine
5305-00-297-7640 INTERCHANGEABLE
Screw,machine
5305-00-297-78081050 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
5305-00-297-7824 INTERCHANGEABLE
Screw,machine
5305-00-297-8043 INTERCHANGEABLE
Screw,machine
5305-00-514-7617 INTERCHANGEABLE
Screw,machine
5305-00-515-9807 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
226666 PRIMARY Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
100-6B5-4 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SCB52163 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
FFS92TYPEISTYLE4S Federal Specifications Promulgated by General Services Administration Washington DC (USA)
226666 Army Weapons Command Attn Amswe-Ree-S (USA)
Related Parts
5305-00-297-3988INTERCHANGEABLE
SCREW,MACHINE
5305-00-297-7640INTERCHANGEABLE
SCREW,MACHINE
5305-00-297-7808INTERCHANGEABLE
SCREW,MACHINE
1050
5305-00-297-7824INTERCHANGEABLE
SCREW,MACHINE
5305-00-297-8043INTERCHANGEABLE
SCREW,MACHINE
5305-00-514-7617INTERCHANGEABLE
SCREW,MACHINE
5305-00-515-9807INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-639-4747?

NSN 5305-00-639-4747 is a Screw,machine, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-639-4747?

NSN 5305-00-639-4747 has 5 cross-referenced part numbers: 226666 (Army, United States Department of the Dba Rock Island Arsenal Jmtc), 100-6B5-4 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SCB52163 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), FFS92TYPEISTYLE4S (Federal Specifications Promulgated by General Services Administration Washington DC), 226666 (Army Weapons Command Attn Amswe-Ree-S).

What NSN replaces 5305-00-639-4747?

There are 7 known substitutes for 5305-00-639-4747: 5305-00-297-3988, 5305-00-297-7640, 5305-00-297-7808 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 226666?

Key specifications for 226666: Nominal Thread Diameter: 0.125 INCHES IN; Screw Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE; Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-639-4747 still in active supply?

NSN 5305-00-639-4747 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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