AN148674

Aeronautical Standard Bolt

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Description:

Fastener Length: 1-5/8", Hole Diameter: 5/64", Thread: 1/4-28, Head Width: 7/32", Thread Length: 43/64"

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AN148674 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.669 inches minimum and 0.820 inches maximum
Fastener Length:
1.615 inches minimum and 1.635 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.428 inches minimum and 0.448 inches maximum
Head Height:
0.250 inches minimum and 0.270 inches maximum
Hole Diameter:
0.070 inches nominal
Internal Drive Style:
Hexagon
Thread Diameter:
0.250 inches
Width Across Flats:
0.219 inches minimum and 0.221 inches maximum
Hole Quantity:
6
Hole Type:
Drilled
Thready Qty Per Inch (tpi):
28
Hardness Rating:
32.0 rockwell c minimum overall and 36.0 rockwell c maximum overall
Hole Configuration Style:
Round longitudinal hole
Surface Finish:
32.0 microinches threads
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Material:
Steel comp 8740 overall
Material Specification:
Ams 6322 assn std single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
Ams 2400 assn std single treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-5/8

Additional Information

SKU / Model: AN148674
NSN: 5305-00-551-0064
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN148674_Military-Fasteners-com.pdf
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Military Fasteners is a great resource for Mil-Spec fastener needs, and Amelia Fato provides excellent support! Whenever I have a specific need, Amelia is quick to respond and help!

5.0

Small order but all was in stock, sales rep was very friendly and made it a pleasure. Shipped and received quicker than expected.

5.0

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0

I can always count on Military Fasteners to give me the best selection of aircraft parts and supplies. Also always get fast shipping, and appreciate the USPS option that is much less expensive than the overnight shippers for us located in Southern California. Thank you for making it easier to keep our general aviation and experimental aircraft flying!

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