MS21083B4

Nut, Self-Locking, Hexagon

Part number: MS21083B4
NSN: 5310-00-936-9642
NIIN: 00-936-9642
Item name: Nut, Self-Locking, Hexagon
Manufacturer: Harvard Industries Inc.
CAGE code: 72962
FSC: 5310
Unit of issue: EA
DEMIL code: A

Alternate part numbers

5310PL0904718 CAGE 9009H
MS21083B4 CAGE 80205
MS21083B4 CAGE 96906
Y92NTE-048 CAGE 72962

Technical characteristics

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 maximum
Width Across Flats: 0.430 inches minimum and 0.439 inches maximum
Temp Rating: 250.0 deg fahrenheit maximum
Thread Series: UNF
Thread Quantity per Inch: 28
Nominal Thread Size: 0.250 inches
Countersink Angle: 88.0 degrees minimum nut
Bearing Surface Type: Chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: Copper alloy nut
Material: Plastic polyamide channel
Surface Treatment: Cadmium overall except insert and chromate overall except insert
Surface Treatment Document and Classification: QQ-P-416, ty 2, cl 2 fed spec all treatment responses overall except insert

Catalogue data is compiled from public DLA/FLIS sources and is provided for identification. Availability, condition and certification are confirmed on quotation. OmniSynk Distribution Services is a stocking distributor.

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