PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21046ADXScrew,machine

Airdale Express Llc Div Airdale Express · NSN 5305-00-206-1288 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-206-1288 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-206-1288. Primary manufacturer part number: 21046ADX.
Features
  • Screw,machine — FSC 5305
  • Screw Material: COPPER ALLOY
  • Screw Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
  • Head Diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Class: 2A A
  • Thread Length: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.138 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-206-1288, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-206-1288
Primary Part Number21046ADX
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusCANCELLED
Screw MaterialCOPPER ALLOY
Screw Material Document and ClassificationQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Thread Class2A A
Thread Length0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Nominal Thread Diameter0.138 INCHES IN
Head Height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Head StylePAN
Fastener Length0.500 INCHES NOMINAL IN
Minimum Tensile Strength57000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6150-00-004-4555SM-D-587457 INTERCHANGEABLE
Bus,conductor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5805-00-009-347611245 INTERCHANGEABLE
Output Isolator Mod
Versitron Inc
3110-00-100-0283560 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Rbc Bearings Incorporated Div West Trenton Division
3110-00-120-4472AT8081A INTERCHANGEABLE
Bearing,ball,thrust
Schatz Bearing Corporation Dba Schatz Bearing Corp
3110-00-144-85470209896 INTERCHANGEABLE
Bearing,ball,annular
Agco Corp Parts Opn
3110-00-155-665303991 INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
2640-00-250-2472350 INTERCHANGEABLE
Valve Extension,tire
Dill Air Controls Products Llc Dba Dill Air Controls Products Llc
4510-00-317-3800 INTERCHANGEABLE
Tailpiece,waste Drain
3010-00-371-32056615 INTERCHANGEABLE
Disk,clutch,nonvehicular
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
6150-00-459-29596284 INTERCHANGEABLE
Lead,storage Battery
893 Mfg, Llc
Cross-Reference Index
Part NumberManufacturer
21046ADX Airdale Express Llc Div Airdale Express (USA)
23-01072-107 Raytheon Company (USA)
AN515B6-8 Aeronautical Standards Group Dept of Navy and Air Force (USA)
XX003-2636 Rdm Technology B.v. (NLD)
6615 Raytheon Technical Services Company (USA)
P343-0332-000 Allied Products Corp Pheoll Mfg Co Div (USA)
K57456-63 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
H95007X27 Eads Deutschland Gmbh (DEU)
15246 BLK.OXIDEADX Airdale Express Llc Div Airdale Express (USA)
5305PL0144749 Jednolity Indeks Materialowy - Uniform Material Index (POL)
500748 Acme Electric Corporation Dba Advanced Energy Systms Aerospa Div Aerospace Division (USA)
MS35214-27 Leonardo Spa Helicopters Division - Production Site (ITA)
343-0332-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MS35214-27 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
10125044 Nimikkeistokeskus Ncb Finland (FIN)
5305002061288 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
343-0332-000 Allied Products Corp Pheoll Mfg Co Div (USA)
K57456-63 L3 Technologies, Inc. Div Communication Systems-East (USA)
1736538-50 Zf Industrieantriebe Witten Gmbh (DEU)
926310 Kalmar AC Inc (USA)
Related Parts
6150-00-004-4555INTERCHANGEABLE
BUS,CONDUCTOR
SM-D-587457
5805-00-009-3476INTERCHANGEABLE
OUTPUT ISOLATOR MOD
11245
3110-00-100-0283INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
560
3110-00-120-4472INTERCHANGEABLE
BEARING,BALL,THRUST
AT8081A
3110-00-144-8547INTERCHANGEABLE
BEARING,BALL,ANNULAR
0209896
3110-00-155-6653INTERCHANGEABLE
BEARING,BALL,ANNULAR
03991
2640-00-250-2472INTERCHANGEABLE
VALVE EXTENSION,TIRE
350
4510-00-317-3800INTERCHANGEABLE
TAILPIECE,WASTE DRAIN
3010-00-371-3205INTERCHANGEABLE
DISK,CLUTCH,NONVEHICULAR
6615
6150-00-459-2959INTERCHANGEABLE
LEAD,STORAGE BATTERY
6284
5220-00-476-7953INTERCHANGEABLE
GAGE,SETTING,PULLIN
628-4
5835-00-603-6661INTERCHANGEABLE
IDLER ASSEMBLY,REWI

Frequently Asked Questions

What is NSN 5305-00-206-1288?

NSN 5305-00-206-1288 is a Screw,machine, manufactured by Airdale Express Llc Div Airdale Express, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-206-1288?

NSN 5305-00-206-1288 has 25 cross-referenced part numbers: 21046ADX (Airdale Express Llc Div Airdale Express), 23-01072-107 (Raytheon Company), AN515B6-8 (Aeronautical Standards Group Dept of Navy and Air Force), XX003-2636 (Rdm Technology B.v.), 6615 (Raytheon Technical Services Company) and 20 more.

What NSN replaces 5305-00-206-1288?

There are 12 known substitutes for 5305-00-206-1288: 6150-00-004-4555, 5805-00-009-3476, 3110-00-100-0283 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21046ADX?

Key specifications for 21046ADX: Screw Material: COPPER ALLOY; Screw Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE; Head Diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Internal Drive Style: CROSS RECESS TYPE 1. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-206-1288 still in active supply?

NSN 5305-00-206-1288 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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