PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4121ADXScrew,machine

Airdale Express Llc Div Airdale Express · NSN 5305-01-054-2012 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-054-2012 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-054-2012. Primary manufacturer part number: 4121ADX.
Features
  • Screw,machine — FSC 5305
  • Screw Surface Treatment: NICKEL
  • Screw Material: COPPER ALLOY
  • Thread Length: 0.187 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 40
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Fastener Length: 0.187 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-054-2012, 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 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-054-2012
Primary Part Number4121ADX
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusACTIVE
Screw Surface TreatmentNICKEL
Screw MaterialCOPPER ALLOY
Thread Length0.187 INCHES NOMINAL IN
Thread Quantity Per Inch40
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length0.187 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.112 INCHES IN
Head StyleFILLISTER
Thread Class2A A
Head Diameter0.235 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-067-0623412 INTERCHANGEABLE
Connector,plug,electrical
Pauluhn Electric Manufacturing, Llp Dba Pauluhn Electric
5950-00-219-86814121 INTERCHANGEABLE
Transformer,power
Spang & Company Dba Magnetics Division
3120-00-339-3202 INTERCHANGEABLE
Bearing,sleeve
4320-00-353-5584 INTERCHANGEABLE
Impeller,pump,centrifugal
4730-00-478-2634D2446 45 ELBOW NPS 1/2 PVCI INTERCHANGEABLE
Elbow,pipe
American Society for Testing and Materials Dba Astm International
4320-00-542-3189 INTERCHANGEABLE
Ram,hydraulic
3417-00-548-3869 INTERCHANGEABLE
Type,copy
5342-00-689-7215412-1 INTERCHANGEABLE
Plug
Niagara Plastics L.l.c.
4210-00-806-6094 INTERCHANGEABLE
No Item Name Available
6625-00-899-806934605 INTERCHANGEABLE
Meter,special Scale
Cec Vibration Products, Llc Dba Cec Vibrations Products
Cross-Reference Index
Part NumberManufacturer
4121ADX Airdale Express Llc Div Airdale Express (USA)
4121 Federal Screw Products, Inc. (USA)
Related Parts
5935-00-067-0623INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
412
5950-00-219-8681INTERCHANGEABLE
TRANSFORMER,POWER
4121
3120-00-339-3202INTERCHANGEABLE
BEARING,SLEEVE
4320-00-353-5584INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
4730-00-478-2634INTERCHANGEABLE
ELBOW,PIPE
D2446 45 ELBOW NPS 1/2 PVCI
4320-00-542-3189INTERCHANGEABLE
RAM,HYDRAULIC
3417-00-548-3869INTERCHANGEABLE
TYPE,COPY
5342-00-689-7215INTERCHANGEABLE
PLUG
412-1
4210-00-806-6094INTERCHANGEABLE
NO ITEM NAME AVAILABLE
6625-00-899-8069INTERCHANGEABLE
METER,SPECIAL SCALE
34605
5310-00-912-0466INTERCHANGEABLE
WASHER,LOCK
5330-00-964-2788INTERCHANGEABLE
GASKET
4121

Frequently Asked Questions

What is NSN 5305-01-054-2012?

NSN 5305-01-054-2012 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 5305-01-054-2012?

NSN 5305-01-054-2012 has 2 cross-referenced part numbers: 4121ADX (Airdale Express Llc Div Airdale Express), 4121 (Federal Screw Products, Inc.).

What NSN replaces 5305-01-054-2012?

There are 12 known substitutes for 5305-01-054-2012: 5935-00-067-0623, 5950-00-219-8681, 3120-00-339-3202 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4121ADX?

Key specifications for 4121ADX: Screw Surface Treatment: NICKEL; Screw Material: COPPER ALLOY; Thread Length: 0.187 INCHES NOMINAL IN; Thread Quantity Per Inch: 40. 11 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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