PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

186574Screw,cap,hexagon Head

Airmotive Carburetor · NSN 5305-00-281-8226 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-281-8226 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-281-8226. Primary manufacturer part number: 186574.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Quantity Per Inch: 28
  • Hole Type: DRILLED
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Material: STEEL COMP 416SE OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OVERALL
  • Thread Series Designator: UNF
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416SE or Steel Comp 303 or Steel Comp 303 Plus X Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-281-8226, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Airmotive Carburetor. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-281-8226
Primary Part Number186574
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAirmotive Carburetor
StatusCANCELLED
Thread Quantity Per Inch28
Hole TypeDRILLED
Nominal Thread Diameter0.250 INCHES IN
MaterialSTEEL COMP 416SE OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OVERALL
Thread Series DesignatorUNF
Surface TreatmentPASSIVATE OVERALL
Thread DirectionRIGHT-HAND
Thread Length0.312 INCHES MINIMUM IN
Head Height0.250 INCHES NOMINAL IN
Width Between Flats0.438 INCHES NOMINAL IN
Hole Diameter0.062 INCHES NOMINAL IN
Hole Configuration StyleHEXAGON FLATS
Thread Class3A A
Head StyleHEXAGON
Fastener Length0.312 INCHES NOMINAL IN
Hole Quantity6
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-100-3575 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Cross-Reference Index
Part NumberManufacturer
186574 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
186574 PRIMARY Airmotive Carburetor (USA)
Related Parts
3110-00-100-3575INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER

Frequently Asked Questions

What is NSN 5305-00-281-8226?

NSN 5305-00-281-8226 is a Screw,cap,hexagon Head, manufactured by Airmotive Carburetor, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-281-8226?

NSN 5305-00-281-8226 has 2 cross-referenced part numbers: 186574 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 186574 (Airmotive Carburetor).

What NSN replaces 5305-00-281-8226?

There is 1 known substitute for 5305-00-281-8226: 3110-00-100-3575. Verify interchangeability with system specifications before substitution.

What are the specifications of 186574?

Key specifications for 186574: Thread Quantity Per Inch: 28; Hole Type: DRILLED; Nominal Thread Diameter: 0.250 INCHES IN; Material: STEEL COMP 416SE OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-281-8226 still in active supply?

NSN 5305-00-281-8226 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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