NSN 5306-00-721-3061
Bolt Flush Head
Between 3.360 inches and 3.390 inches fastener length, bevel-conical head style, between 0.428 inches and 0.438 inches head diameter, head height: 0.250 inches .
Manufacturer part number MILB7838 for national stock number 5306007213061.
Datasheet
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Product description
Internal Wrenching Bolt NSN 5306-00-721-3061.
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MPN or Model
MILB7838
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.475 inches and 0.525 inches -
Fastener Length
Between 3.360 inches and 3.390 inches -
Head Style
Bevel-conical -
Head Diameter
Between 0.428 inches and 0.438 inches -
Head Height
0.250 inches -
Internal Drive Style
Hexagon -
Thread Diameter
0.250 inches -
Width Across Flats
Between 0.188 inches and 0.190 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Hardness Rating
34.0 rockwell c and 40.0 rockwell c -
Material
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 -
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2 cl 3 federal specification single treatment response -
Thread Series Designator
Unf
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An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.
![Mechanic Bill explains Bolt Flush Head](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5306-00-721-3061 internal wrenching boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
MILB7838 | National Aerospace Standards |
MS20004-46 | National Aerospace Standards |
MILB7838 | Military Specifications |
MS20004-46 | Military Standards |
Stock Check
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