Spec hardware, served at warp speed.

nuts › plain hexagon nuts

MS51858-6

Military Standard Plain Hexagon Nut

View quote list → Saved parts →

Description

Thread Size: 1/4", Nut Height: 1/8", Head Width: 3/8

Specifications

Bearing Surface Type Chamfered
Material Plastic
Material Specification Mil-m-20693 mil spec single material response
Nondefinitive Specification/Std Data 2 type and 13 style
Nut Height 0.117 inches minimum and 0.130 inches maximum
Nut Style Hexagon
Special Features Natural color
Thread Class 2b
Thread Direction Right-hand
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series UNF
Thread Size 0.190
Width Across Flats 0.362 inches minimum and 0.375 inches maximum

Other sizes

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

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

Looking for a specific part? Use the cross-reference lookup.

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