51B221-5

Screw

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Description:

Fastener Length: 37/64", Thread: 10-32, Thread Length: 9/32"

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51B221-5 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.276 inches minimum
Fastener Length:
0.573 inches minimum and 0.620 inches maximum
Head Style:
Modified pan
Head Diameter:
0.361 inches minimum and 0.381 inches maximum
Head Height:
0.103 inches minimum and 0.118 inches maximum
Grip Diameter:
0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.190 inches
Grip Length:
0.297 inches minimum and 0.327 inches maximum
Thready Qty Per Inch (tpi):
32
Min. Tensile Strength (psi):
180000 pounds per square inch
Surface Finish:
32.0 microinches grip
Material:
Steel comp 4140 overall or steel comp e4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6049 mil spec 5th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 3 fed spec single treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 10
Thread Qty 32
Material Steel
Length 39/64

Additional Information

SKU / Model: 51B2215
NSN: 5305-00-802-0571
FSC: Screws / 5305
Product Series: 51B221
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
51B221-5_Military-Fasteners-com.pdf
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More 51B221 close tolerance screws

51B221-8

Fastener Length: 49/64", Thread: 10-32, Thread Length: 9/32"

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The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.

5.0

Received order very quick. I was totally impressed with how well it was prepared for shipment. While a fragile order, it arrived undamaged in any way because of the excellent packaging. Thanks.

5.0

Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!

5.0

Brittany was attentive to our needs. We had to source some other products you didn't have elsewhere. We would have preferred to place an order a one place. Will come back and order another time.

5.0