PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8C50KCSScrew,cap,socket Head

Kerr Lakeside Inc. · NSN 5305-01-676-1789 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-676-1789 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-676-1789. Primary manufacturer part number: 8C50KCS.
Features
  • Screw,cap,socket Head — FSC 5305
  • Color: BLACK OVERALL
  • Surface Treatment: BLACK CHEMICAL FINISH OVERALL
  • Thread Length: 0.500 INCHES NOMINAL IN
  • Minimum Tensile Strength: 180000 POUNDS PER SQUARE INCH LBS
  • Thread Quantity Per Inch: 32
  • Fastener Length: 0.664 INCHES NOMINAL IN
  • Head Height: 0.164 INCHES NOMINAL 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 5305-01-676-1789, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kerr Lakeside Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-676-1789
Primary Part Number8C50KCS
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerKerr Lakeside Inc.
StatusACTIVE
ColorBLACK OVERALL
Surface TreatmentBLACK CHEMICAL FINISH OVERALL
Thread Length0.500 INCHES NOMINAL IN
Minimum Tensile Strength180000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch32
Fastener Length0.664 INCHES NOMINAL IN
Head Height0.164 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
MaterialSTEEL OVERALL
Nominal Thread Diameter8.0 MILLIMETERS MM
Thread DirectionRIGHT-HAND
Thread Class3A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating43.0 ROCKWELL C MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-244-890423114 INTERCHANGEABLE
Pin,straight,headless
Briggs and Stratton Corp
5133-00-247-2751 INTERCHANGEABLE
Drill,twist
5895-00-522-793523114 INTERCHANGEABLE
Pipette,dropping
Raytheon Company Dba Raytheon
5920-00-581-3856 INTERCHANGEABLE
Fuse,cartridge
3455-01-044-79501725-1500 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
1630-01-063-789861-19 INTERCHANGEABLE
Cylinder,hydraulic Brake,wheel
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
8940-01-152-7057 INTERCHANGEABLE
Dietary Supplement,therapeutic
5962-01-171-0987CD4069UBF INTERCHANGEABLE
Microcircuit,digital
Renesas Electronics America Inc
5330-01-210-9632 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
2640-01-416-863023-114 INTERCHANGEABLE
Valve,pneumatic Tire
Myers Tire Supply Distribution Inc Div Akron Branch
Cross-Reference Index
Part NumberManufacturer
91251A194 Mcmaster-Carr Supply Co (USA)
5MHZ5 Grainger Div of W W Grainger Inc (USA)
23114 Fastenal Co Dba Fastenal Co Div Fastenal Manufacturing (USA)
8C50KCS PRIMARY Kerr Lakeside Inc. (USA)
Related Parts
5315-00-244-8904INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
23114
5133-00-247-2751INTERCHANGEABLE
DRILL,TWIST
5895-00-522-7935INTERCHANGEABLE
PIPETTE,DROPPING
23114
5920-00-581-3856INTERCHANGEABLE
FUSE,CARTRIDGE
3455-01-044-7950INTERCHANGEABLE
CUTTER,MILLING,END
1725-1500
1630-01-063-7898INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,WHEEL
61-19
8940-01-152-7057INTERCHANGEABLE
DIETARY SUPPLEMENT,THERAPEUTIC
5962-01-171-0987INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
CD4069UBF
5330-01-210-9632INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
2640-01-416-8630INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
23-114
4820-01-417-5828INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
23114
6530-01-597-2298INTERCHANGEABLE
PACK,MEDICAL SUPPLY
PP1680

Frequently Asked Questions

What is NSN 5305-01-676-1789?

NSN 5305-01-676-1789 is a Screw,cap,socket Head, manufactured by Kerr Lakeside Inc., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-676-1789?

NSN 5305-01-676-1789 has 4 cross-referenced part numbers: 91251A194 (Mcmaster-Carr Supply Co), 5MHZ5 (Grainger Div of W W Grainger Inc), 23114 (Fastenal Co Dba Fastenal Co Div Fastenal Manufacturing), 8C50KCS (Kerr Lakeside Inc.).

What NSN replaces 5305-01-676-1789?

There are 12 known substitutes for 5305-01-676-1789: 5315-00-244-8904, 5133-00-247-2751, 5895-00-522-7935 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8C50KCS?

Key specifications for 8C50KCS: Color: BLACK OVERALL; Surface Treatment: BLACK CHEMICAL FINISH OVERALL; Thread Length: 0.500 INCHES NOMINAL IN; Minimum Tensile Strength: 180000 POUNDS PER SQUARE INCH LBS. 16 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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