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MS21073L4

Military Standard Locking Nutplate Self

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Description

Nutplate

Specifications

Alternate Part Number NAS698A4
Counterbore Diameter 0.254 inches nut
Distance From Aperture Center To Mounting Hole Center Between 0.276 inches and 0.286 inches
Hardness Rating 49.0 rockwell c
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Steel
Mounting Hole Arrangement Style 2 holes
Mounting Hole Diameter Between 0.098 inches and 0.103 inches
NIIN 00-761-6830
NSN 5310-00-761-6830
Nut Counterbore Depth 0.062 inches nut
Nut Height 0.281
Nut Length 0.603
Nut Mounting Provision Straight holes
Nut Style Plate
Plate Thickness 0.055
Surface Treatment Cadmium
Surface Treatment Specification Qq-p-416 federal specification single treatment response
Temperature Rating 450.0 degrees fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Unjf (fine thread with external controlled root radius)
Thread Size 0.250
Weight 0.003 lb

Other sizes

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

Cross-reference

Interchangeable

Parts that share a National Stock Number or are listed as an alternate for MS21073L4 — functionally equivalent.

Similar parts

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

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