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NAS1791C4-5

Locking Nutplate Self

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Description

Nutplates

Specifications

Center To Center Distance Between Mounting Holes Along Length 0.998 inches minimum and 1.002 inches maximum
Counterbore Diameter 0.254 inches nominal nut
Distance From Aperture Center To Mounting Hole Center 0.495 inches minimum and 0.505 inches maximum
Features Provided Floating nut
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Iron
Material Specification Ams 5525 assn std single material response nut or ams 5732 assn std single material response nut or ams 5737 assn std single material response nut, Ams 5525 assn std single material response shell
Mounting Hole Arrangement Style 2 holes
Mounting Hole Diameter 0.098 inches minimum and 0.103 inches maximum
Nut Counterbore Depth 0.313 inches minimum nut
Nut Height 0.543 inches maximum
Nut Length 1.292 inches maximum
Nut Mounting Provision Straight holes
Nut Style Plate
Plate Thickness 0.027 inches minimum and 0.037 inches maximum
Plate Width 0.547 inches maximum
Specification Data 80205-nas1791 professional/industrial association standard
Surface Treatment Passivate
Surface Treatment Specification Qq-p-35 fed spec single treatment response
Temperature Rating 450.0 deg fahrenheit maximum
Thread Class 3b
Thread Direction Right-hand
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series UNJF
Thread Size 0.250

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