MS21044D4

Military Standard Locking Hexagon Nut Self

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Description:

thread: 1/4-28, self locking locknut, regular height, aluminum alloy, nylon insert, anodized

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MS21044D4 Datasheet Features and Specification

Thread Class:
3b
Tempurature Rating:
250.0 degrees fahrenheit
Surface Treatment:
Anodize except insert and chromate except insert
Nut Style:
Hexagon
Nut Height:
0.240 mils and 0.360 centimeters
Material Specification:
T6 federal specification 4th material response nut t6 federal specification 3rd material response nut or qq-a-200/11 t4 federal specification 2nd material response nut or qq-a-225/6 t6 federal specification 1st material response nut or qq-a-225/5 qq-a-200/2
Material:
Aluminum alloy 2014 nut or aluminum alloy 2017 nut or aluminum alloy 2024 nut or aluminum alloy 7075 nut
Lubrication:
Soluble lubricant
Locking Feature:
Prevailing torque with nonmetallic insert
Countersink Angle:
88.0 degrees nut
Bearing Surface Type:
Chamfered or washer faced
Bearing Surface Finish:
125.0 microinches
Thread Direction:
Right-hand
Thread Qty Per Inch (tpi):
28
Thread Series:
Unjf (fine thread with external controlled root radius)
Thread Size:
0.250 inches
Width Across Flats:
Between 0.430 inches and 0.439 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3B
Material Aluminum

Additional Information

SKU / Model: MS21044D4
NSN: 5310-00-857-4960
FSC: Nuts and Washers / 5310
Product Series: MS21044D
Pack Weight (Approx.) 0.098 lb
Minimum Qty (MOQ): 25
Schedule B: 7318.16.0030
ECCN: EAR99
National Motor Freight: 013540, Alum Nuts
Download PDF Version
MS21044D4_Military-Fasteners-com.pdf
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Have been buying from you for many years and have been very very satisfied.

5.0

Products are military grade MIL-SPEC as advertised. I was able to locate #10 locking counter-sunk nutplates when ALL other locations, including Aircraft-Spruce, could not supply.

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Great response time for pricing. Good turn around for order shipment!

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