PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

418331-20Screw,machine

Raytheon Company Dba Raytheon · NSN 5305-00-455-2528 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-455-2528 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-455-2528. Primary manufacturer part number: 418331-20.
Features
  • Screw,machine — FSC 5305
  • Head Diameter: 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
  • Screw Material: STEEL CORROSION RESISTING OR STEEL
  • Nondefinitive Spec/std Data: 3 TYPE AND 2C STYLE
  • Fastener Length: 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
  • Screw Surface Treatment Document and Classification: MIL-C-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-455-2528, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 18 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
NSN5305-00-455-2528
Primary Part Number418331-20
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Head Diameter0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
Screw MaterialSTEEL CORROSION RESISTING OR STEEL
Nondefinitive Spec/std Data3 TYPE AND 2C STYLE
Fastener Length0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Screw Surface Treatment Document and ClassificationMIL-C-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Thread Class2A A
Thread Length0.727 INCHES MINIMUM AND 0.808 INCHES MAXIMUM IN
Screw Surface TreatmentOXIDE
Departure From Cited DesignatorAS MODIFIED BY FINISH
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.112 INCHES IN
Screw Material Document and ClassificationQQ-S-763,300 SERIES FED SPEC 1ST MATERIAL RESPONSE OR 66,300 SERIES FED STD 1ST MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD 2ND MATERIAL RESPONSE
Head StyleFLAT COUNTERSUNK
Thread Quantity Per Inch40
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-763-7828 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
418331-20 Raytheon Company Dba Raytheon (USA)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51959-20B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-763-7828INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-455-2528?

NSN 5305-00-455-2528 is a Screw,machine, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-455-2528?

NSN 5305-00-455-2528 has 3 cross-referenced part numbers: 418331-20 (Raytheon Company Dba Raytheon), FFS92 (Federal Specifications Promulgated by General Services Administration Washington DC), MS51959-20B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-455-2528?

There is 1 known substitute for 5305-00-455-2528: 5305-00-763-7828. Verify interchangeability with system specifications before substitution.

What are the specifications of 418331-20?

Key specifications for 418331-20: Head Diameter: 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN; Screw Material: STEEL CORROSION RESISTING OR STEEL; Nondefinitive Spec/std Data: 3 TYPE AND 2C STYLE; Fastener Length: 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN. 18 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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