PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS220-18Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-282-6232 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-282-6232 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-282-6232. Primary manufacturer part number: NAS220-18.
Features
  • Screw,machine — FSC 5305
  • Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS
  • Head Style: ROUND
  • Fastener Length: 1.141 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
  • Head Height: 0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
  • Screw Material Document and Classification: MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • 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 5305-00-282-6232, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 17 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-282-6232
Primary Part NumberNAS220-18
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Head StyleROUND
Fastener Length1.141 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
Head Height0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
Screw Material Document and ClassificationMIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch32
Nominal Thread Diameter0.164 INCHES IN
Thread Class3A A
Thread Length0.345 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
Screw Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Screw Surface TreatmentCADMIUM
Screw MaterialSTEEL COMP 8630
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Head Diameter0.309 INCHES MINIMUM AND 0.331 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5360-00-083-4249 INTERCHANGEABLE
Spring,helical,compression
5935-00-163-9505578R696H05 INTERCHANGEABLE
Guide,electrical Connector
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6645-00-166-6677 INTERCHANGEABLE
Balance,aircraft Cl
4730-00-348-5619 INTERCHANGEABLE
Plug,tube Repair
5940-00-983-6113 INTERCHANGEABLE
Terminal Board
5330-01-605-063922018 INTERCHANGEABLE
Gasket
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5845-01-642-866222018 INTERCHANGEABLE
Window,sonar
Naval Air Development Center Warminster Navairsyscom Hq
Cross-Reference Index
Part NumberManufacturer
NAS220-18 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
220-18 National Steel Corp (USA)
Related Parts
5360-00-083-4249INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5935-00-163-9505INTERCHANGEABLE
GUIDE,ELECTRICAL CONNECTOR
578R696H05
6645-00-166-6677INTERCHANGEABLE
BALANCE,AIRCRAFT CL
4730-00-348-5619INTERCHANGEABLE
PLUG,TUBE REPAIR
5940-00-983-6113INTERCHANGEABLE
TERMINAL BOARD
5330-01-605-0639INTERCHANGEABLE
GASKET
22018
5845-01-642-8662INTERCHANGEABLE
WINDOW,SONAR
22018

Frequently Asked Questions

What is NSN 5305-00-282-6232?

NSN 5305-00-282-6232 is a Screw,machine, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-282-6232?

NSN 5305-00-282-6232 has 2 cross-referenced part numbers: NAS220-18 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 220-18 (National Steel Corp).

What NSN replaces 5305-00-282-6232?

There are 7 known substitutes for 5305-00-282-6232: 5360-00-083-4249, 5935-00-163-9505, 6645-00-166-6677 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS220-18?

Key specifications for NAS220-18: Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS; Head Style: ROUND; Fastener Length: 1.141 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN; Head Height: 0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-282-6232 still in active supply?

NSN 5305-00-282-6232 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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