PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23AN520-10R18Screw,machine

L3harris Cincinnati Electronics Corporation · NSN 5305-00-820-5283 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-820-5283 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-820-5283. Primary manufacturer part number: 23AN520-10R18.
Features
  • Screw,machine — FSC 5305
  • Head Height: 0.137 INCHES NOMINAL IN
  • Thread Length: 1.125 INCHES NOMINAL IN
  • Screw Material: STEEL COMP 1010
  • Screw Material Document and Classification: QQ-S-671 FED SPEC SINGLE MATERIAL RESPONSE
  • Thread Series Designator: UNF
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Screw Surface Treatment: CADMIUM AND CHROMATE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-820-5283, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Cincinnati Electronics Corporation. Government technical data includes 14 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-820-5283
Primary Part Number23AN520-10R18
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerL3harris Cincinnati Electronics Corporation
StatusACTIVE
Head Height0.137 INCHES NOMINAL IN
Thread Length1.125 INCHES NOMINAL IN
Screw MaterialSTEEL COMP 1010
Screw Material Document and ClassificationQQ-S-671 FED SPEC SINGLE MATERIAL RESPONSE
Thread Series DesignatorUNF
Internal Drive StyleCROSS RECESS TYPE 1
Screw Surface TreatmentCADMIUM AND CHROMATE
Thread Quantity Per Inch32
Head Diameter0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
Fastener Length1.125 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Head StyleROUND
Thread DirectionRIGHT-HAND
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-00-144-38241027300-10-18 INTERCHANGEABLE
Screw,machine
The Boeing Company
5305-00-995-3442MS35207-268 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
23AN520-10R18 PRIMARY L3harris Cincinnati Electronics Corporation (USA)
AN520-10R18 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5305-00-144-3824INTERCHANGEABLE
SCREW,MACHINE
1027300-10-18
5305-00-995-3442INTERCHANGEABLE
SCREW,MACHINE
MS35207-268

Frequently Asked Questions

What is NSN 5305-00-820-5283?

NSN 5305-00-820-5283 is a Screw,machine, manufactured by L3harris Cincinnati Electronics Corporation, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-820-5283?

NSN 5305-00-820-5283 has 2 cross-referenced part numbers: 23AN520-10R18 (L3harris Cincinnati Electronics Corporation), AN520-10R18 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5305-00-820-5283?

There are 2 known substitutes for 5305-00-820-5283: 5305-00-144-3824, 5305-00-995-3442. Verify interchangeability with system specifications before substitution.

What are the specifications of 23AN520-10R18?

Key specifications for 23AN520-10R18: Head Height: 0.137 INCHES NOMINAL IN; Thread Length: 1.125 INCHES NOMINAL IN; Screw Material: STEEL COMP 1010; Screw Material Document and Classification: QQ-S-671 FED SPEC SINGLE MATERIAL RESPONSE. 14 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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