PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91894Screw,cap,socket Head

Briggs and Stratton Corp · NSN 5305-00-013-8203 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-013-8203 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-013-8203. Primary manufacturer part number: 91894.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Class: 3A A
  • Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Thread Length: 1.000 INCHES NOMINAL IN
  • Minimum Yield Strength: 140000 POUNDS PER SQUARE INCH LBS
  • Thread Quantity Per Inch: 20
  • Internal Drive Style: HEXAGON
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 2340 or Steel Comp 3135 or Steel Comp 4037 or Steel Comp 4137 or Steel Comp 4140 or Steel Comp 4340 or Steel Comp 8630 or Steel Comp 8740 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-013-8203, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 17 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-013-8203
Primary Part Number91894
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBriggs and Stratton Corp
StatusACTIVE
Thread Class3A A
Head Height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Thread Length1.000 INCHES NOMINAL IN
Minimum Yield Strength140000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch20
Internal Drive StyleHEXAGON
Nominal Thread Diameter0.250 INCHES IN
Hardness Rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 11 STYLE
MaterialSTEEL COMP 2340 OR STEEL COMP 3135 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
Thread DirectionRIGHT-HAND
Head Diameter0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Width Across Flats0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length1.250 INCHES NOMINAL IN
Head StyleFLAT CHAMFER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-010-2647102647 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Rolls-Royce Solutions America Inc
3020-01-548-8565 INTERCHANGEABLE
Link,roller Chain
Cross-Reference Index
Part NumberManufacturer
91894 PRIMARY Briggs and Stratton Corp (USA)
138203 General Motors Corp (USA)
FFS86TYPE1STYLE11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
138203 General Motors Llc Dba General Motors Llc (USA)
Related Parts
5310-00-010-2647INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
102647
3020-01-548-8565INTERCHANGEABLE
LINK,ROLLER CHAIN

Frequently Asked Questions

What is NSN 5305-00-013-8203?

NSN 5305-00-013-8203 is a Screw,cap,socket Head, manufactured by Briggs and Stratton Corp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-013-8203?

NSN 5305-00-013-8203 has 4 cross-referenced part numbers: 91894 (Briggs and Stratton Corp), 138203 (General Motors Corp), FFS86TYPE1STYLE11 (Federal Specifications Promulgated by General Services Administration Washington DC), 138203 (General Motors Llc Dba General Motors Llc).

What NSN replaces 5305-00-013-8203?

There are 2 known substitutes for 5305-00-013-8203: 5310-00-010-2647, 3020-01-548-8565. Verify interchangeability with system specifications before substitution.

What are the specifications of 91894?

Key specifications for 91894: Thread Class: 3A A; Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Thread Length: 1.000 INCHES NOMINAL IN; Minimum Yield Strength: 140000 POUNDS PER SQUARE INCH LBS. 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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