The FN22-1018 Flexloc Nut provides high-performance with a 0.625" nominal thread size. Its double hexagon design is corrosion-resistant and withstands 450°F, ensuring reliable locking for secure fastening in critical aviation assemblies.
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Overview
Hexagonal Nut FN22-1018 is an extended washer, self-locking nut made from alloy steel. This nut features a nominal thread size of 0.625 inches and a right-hand thread direction. It has a hardness rating of 44.0 Rockwell C maximum and a temperature rating of 450.0 Fahrenheit nominal. The locking feature utilizes a prevailing torque all metal design to ensure a secure fit. The nut's overall height is 0.586 inches maximum, while the width across flats ranges from 0.741 inches minimum to 0.752 inches maximum. With a thread series of Unified National Joint Fine (UNJF) and 18 threads per inch, this nut is suitable for various fastening applications.
Features & Benefits
Locks securely using a prevailing torque all metal design
Double hexagon style provides an enhanced grip
Suitable for high-temperature applications
Thread series ensures compatibility with UNJF specifications
Technical Information
NIIN
000620610
NSN
5310-00-062-0610
FSCG
5310
FSCG Category
Nuts and Washers
UNSPSC Code
31161727
UNSPSC Category
Hexagonal nuts
Lead Time (Days)
375
Product Class Description
Hexagonal nuts
Harmonized Tariff Schedule Code
7318160085
Storage Required
No
Unit Of Measure
EA
Pieces Per Pound
0
DFAR Applicable
No
Revision Level Applicable
No
Product Class
31161727
Material Composition
ALLOY STEEL
Design Holder CAGE Code
56878
Design Holder
SPS TECHNOLOGIES LLC DBA AEROSPACE
Potential Alternates
5310000620610
Aircraft Makes
McDonnell Douglas
Boeing
Aircraft Models
727-200
DC9
DC9
727-100
Shipping Details
Dry Ice
No
ECCN
EAR99
Proprietary Part
No
Hazmat
No
Buy now from
Boeing Distribution Services
This product is no longer available.
DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
