PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFS103ATYPE4STYLE4Setscrew

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-282-4546 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-282-4546 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-282-4546. Primary manufacturer part number: FFS103ATYPE4STYLE4.
Features
  • Setscrew — FSC 5305
  • Point Style: CUP
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Quantity Per Inch: 32
  • Spline Major Diameter: 0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
  • Thread Length: 0.188 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
Applications
  • Applications requiring Steel Comp 4037 or Steel Comp 4137 or Steel Comp 4140 or Steel Comp 8630 or Steel Comp 8740 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-282-4546, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 17 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-282-4546
Primary Part NumberFFS103ATYPE4STYLE4
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Point StyleCUP
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
Thread Quantity Per Inch32
Spline Major Diameter0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
Thread Length0.188 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Spline Width0.022 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
Spline Minor Diameter0.055 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN
Fastener Length0.188 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.138 INCHES IN
Thread Class3A A
MaterialSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
Internal Drive StyleCROSS RECESS TYPE 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5970-00-137-9678SA-1404 INTERCHANGEABLE
Insulator,standoff
Morgan Advanced Ceramics, Inc.
5330-00-641-285010740 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5915-00-655-0347482906-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Raytheon Company Dba Raytheon Co
8455-00-912-5440 INTERCHANGEABLE
Insignia,shoulder Sleeve
5998-01-035-4385JSI-40W INTERCHANGEABLE
Patchboard,electrical
Trompeter Electronics, Inc.
8455-01-528-8563 INTERCHANGEABLE
Insignia,shoulder Sleeve
2590-01-610-6134 INTERCHANGEABLE
Bracket,vehicular Components
8455-01-659-8466 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-700-3151 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
FFS103ATYPE4STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51053-127 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A140-4 Raytheon Company Dba Raytheon Co (USA)
Related Parts
5970-00-137-9678INTERCHANGEABLE
INSULATOR,STANDOFF
SA-1404
5330-00-641-2850INTERCHANGEABLE
SEAL,PLAIN ENCASED
10740
5915-00-655-0347INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
482906-1
8455-00-912-5440INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
5998-01-035-4385INTERCHANGEABLE
PATCHBOARD,ELECTRICAL
JSI-40W
8455-01-528-8563INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
2590-01-610-6134INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
8455-01-659-8466INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-700-3151INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 5305-00-282-4546?

NSN 5305-00-282-4546 is a Setscrew, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-282-4546?

NSN 5305-00-282-4546 has 3 cross-referenced part numbers: FFS103ATYPE4STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC), MS51053-127 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A140-4 (Raytheon Company Dba Raytheon Co).

What NSN replaces 5305-00-282-4546?

There are 9 known substitutes for 5305-00-282-4546: 5970-00-137-9678, 5330-00-641-2850, 5915-00-655-0347 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFS103ATYPE4STYLE4?

Key specifications for FFS103ATYPE4STYLE4: Point Style: CUP; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL; Thread Quantity Per Inch: 32; Spline Major Diameter: 0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN. 17 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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