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Nut MS21083D4

Description:

Thread: 1/4-28, self locking nut, hexagon, low height, aluminum alloy, nylon insert, 250° , , anodized

MS21083D4 Details

National Stock Number (NSN) 5310-00-922-9081
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 20 /Ea.
Thread Class 3b
Thread Direction Right-hand
Locking Feature Prevailing torque with nonmetallic insert
Lubrication Soluble lubricant
Nut Style Hexagon
Nut Height 0.219 inches
End Application Sonar sets, an/bqs-14a/15; arleigh burke class ddg; aircraft (ac-130h, mc-130h, ec-130e, hc-130); aircraft, osprey v-22a, marine corps; aircraft, airlifter c-17a; surface minesweeping systems; los angeles class ssn (688); engine, aircraft, tf-33-p-7 (c-141a/b); aircraft, osprey v-22a, air force; ah-64-d longbow; ticonderoga class cg (47); fms - build frigates class ships
Width Across Flats Between 0.430 inches and 0.439 inches
Tempurature Rating 250.0 degrees fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 28
Thread Size 0.250 inches
Countersink Angle 88.0 degrees nut
Bearing Surface Type Chamfered or washer faced
Bearing Surface Finish 125.0 microinches
Material Aluminum alloy nut
Material Plastic polyamide locking insert
Surface Treatment Anodize except insert or chromate except insert
Surface Treatment Specification Mil-a-8625 military specification 1st treatment response except insert or mil-c-5541 military specification 2nd treatment response except insert

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