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NAS577B8F

Two Lug Locknut Cap Plate

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Description

Thread Size: 1/2", Nut Length: 1", Nut Height: 45/64"

Specifications

Features Provided Floating nut
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Steel
Material Specification Mil-s-6049 mil spec 1st material response or ams 6322 assn std 1st material response or mil-s-8844 mil spec 2nd material response
Nut Diameter 0.869 inches minimum and 0.872 inches maximum
Nut Height 0.703 inches maximum
Nut Length 0.990 inches minimum and 1.010 inches maximum
Nut Style Floating self-locking barrel
Specification Data 80205-nas577 professional/industrial association standard
Surface Treatment Cadmium
Surface Treatment Specification Nas672 assn std single treatment response or mil-c-8837 mil spec single treatment response
Thread Class 3b
Thread Direction Right-hand
Thread Qty 20
Thread Qty Per Inch (tpi) 20
Thread Series UNJF
Thread Size 0.500

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

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Catalog data updated 2026-07-05. Report a data error