PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18446ADXScrew,machine

Airdale Express Llc Div Airdale Express · NSN 5305-01-445-3479 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-445-3479 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-445-3479. Primary manufacturer part number: 18446ADX.
Features
  • Screw,machine — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.164 INCHES IN
  • Head Style: FILLISTER
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Fastener Length: 0.500 INCHES NOMINAL IN
  • Screw Material: STEEL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-445-3479, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Airdale Express Llc Div Airdale Express. Government technical data includes 9 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-445-3479
Primary Part Number18446ADX
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.164 INCHES IN
Head StyleFILLISTER
Internal Drive StyleCROSS RECESS TYPE 1
Fastener Length0.500 INCHES NOMINAL IN
Screw MaterialSTEEL
Thread Quantity Per Inch32
Screw Surface TreatmentCADMIUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-307-414518-446 INTERCHANGEABLE
Transformer,power
Leach International Corp Div Leach International Corporation
6240-00-617-1719A50591-1 INTERCHANGEABLE
Lamp,incandescent
Dla Aviation Engineering Div Department of Defense
4720-00-684-4033 INTERCHANGEABLE
Hose Assembly,nonmetallic
6240-01-146-919793001-34 INTERCHANGEABLE
Lamp,incandescent
Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc
Cross-Reference Index
Part NumberManufacturer
18446ADX Airdale Express Llc Div Airdale Express (USA)
H10104 Spectro Scientific, Inc Dba Spectro Inc (USA)
18446 Federal Screw Products, Inc. (USA)
Related Parts
5950-00-307-4145INTERCHANGEABLE
TRANSFORMER,POWER
18-446
6240-00-617-1719INTERCHANGEABLE
LAMP,INCANDESCENT
A50591-1
4720-00-684-4033INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
6240-01-146-9197INTERCHANGEABLE
LAMP,INCANDESCENT
93001-34

Frequently Asked Questions

What is NSN 5305-01-445-3479?

NSN 5305-01-445-3479 is a Screw,machine, manufactured by Airdale Express Llc Div Airdale Express, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-445-3479?

NSN 5305-01-445-3479 has 3 cross-referenced part numbers: 18446ADX (Airdale Express Llc Div Airdale Express), H10104 (Spectro Scientific, Inc Dba Spectro Inc), 18446 (Federal Screw Products, Inc.).

What NSN replaces 5305-01-445-3479?

There are 4 known substitutes for 5305-01-445-3479: 5950-00-307-4145, 6240-00-617-1719, 4720-00-684-4033 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18446ADX?

Key specifications for 18446ADX: Thread Direction: RIGHT-HAND; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Diameter: 0.164 INCHES IN. 10 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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