PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21026ADXScrew,machine

Airdale Express Llc Div Airdale Express · NSN 5305-01-126-7128 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-126-7128 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-126-7128. Primary manufacturer part number: 21026ADX.
Features
  • Screw,machine — FSC 5305
  • Screw Material: NICKEL
  • Thread Quantity Per Inch: 40
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.112 INCHES IN
  • Thread Length: 0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Thread Class: 2A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-126-7128, 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 12 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-126-7128
Primary Part Number21026ADX
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusACTIVE
Screw MaterialNICKEL
Thread Quantity Per Inch40
Internal Drive StyleCROSS RECESS TYPE 1
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.112 INCHES IN
Thread Length0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Thread Class2A A
Head Height0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Head Diameter0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
Head StylePAN
Fastener Length0.500 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-156-7345 INTERCHANGEABLE
Terminal,lug
6145-00-161-0913 INTERCHANGEABLE
Cable,radio Frequency
5999-00-503-2002N11 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
5330-00-551-9306 INTERCHANGEABLE
Gasket
5950-00-869-4812 INTERCHANGEABLE
Transformer,power
5999-01-017-107621026 INTERCHANGEABLE
Contactor,air Condi
Noske-Kaeser Germany Gmbh
5930-01-073-3412 INTERCHANGEABLE
Switch,toggle
5340-01-095-375721026 INTERCHANGEABLE
Panel,rear,intermed
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5360-01-318-22622-1026 INTERCHANGEABLE
Spring,helical,compression
Malabar
5970-01-388-643221026 INTERCHANGEABLE
Cover,insulator,spe
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
21026ADX Airdale Express Llc Div Airdale Express (USA)
21026 Federal Screw Products, Inc. (USA)
Related Parts
5940-00-156-7345INTERCHANGEABLE
TERMINAL,LUG
6145-00-161-0913INTERCHANGEABLE
CABLE,RADIO FREQUENCY
5999-00-503-2002INTERCHANGEABLE
HEATER,THERMAL RELEASE
N11
5330-00-551-9306INTERCHANGEABLE
GASKET
5950-00-869-4812INTERCHANGEABLE
TRANSFORMER,POWER
5999-01-017-1076INTERCHANGEABLE
CONTACTOR,AIR CONDI
21026
5930-01-073-3412INTERCHANGEABLE
SWITCH,TOGGLE
5340-01-095-3757INTERCHANGEABLE
PANEL,REAR,INTERMED
21026
5360-01-318-2262INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2-1026
5970-01-388-6432INTERCHANGEABLE
COVER,INSULATOR,SPE
21026
3110-01-553-0555INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 5305-01-126-7128?

NSN 5305-01-126-7128 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 5305-01-126-7128?

NSN 5305-01-126-7128 has 2 cross-referenced part numbers: 21026ADX (Airdale Express Llc Div Airdale Express), 21026 (Federal Screw Products, Inc.).

What NSN replaces 5305-01-126-7128?

There are 11 known substitutes for 5305-01-126-7128: 5940-00-156-7345, 6145-00-161-0913, 5999-00-503-2002 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21026ADX?

Key specifications for 21026ADX: Screw Material: NICKEL; Thread Quantity Per Inch: 40; Internal Drive Style: CROSS RECESS TYPE 1; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 12 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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