NSN 5305-00-548-5081
High Torque Screw
Between 0.635 inches and 0.682 inches fastener length, flat countersunk head style, between 0.297 inches and 0.302 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .
Manufacturer part number 51B581-3-6 for national stock number 5305005485081.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-548-5081.
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MPN or Model
51B581-3-6
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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) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.250 inches and 0.317 inches -
Fastener Length
Between 0.635 inches and 0.682 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.297 inches and 0.302 inches -
Grip Diameter
Between 0.1885 inches and 0.1895 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.190 inches -
Grip Length
Between 0.365 inches and 0.385 inches -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
180000 pounds per square inch -
Hardness Rating
39.0 rockwell c and 43.0 rockwell c -
Countersink Angle
100.0 degrees -
Surface Finish
32.0 microinches grip -
Material
Steel comp 4340 or steel comp 4140 or steel comp 8740 -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response -
Thread Series Designator
Unjf -
Specification Data
76823-51b581 manufacturers standard
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
Pricing and Availability
Get a quote for 5305-00-548-5081 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
51B581-3-6 | Northrop Grumman Technical Services, |
51B581-3-6 | Sps Technologies, Llc |
51B581-3-6 | Sps Technologies, Llc |
51B581-3-6 | Hi-shear Corporation |
51B581-3-6 | Sps Technologies, Llc |
51B581-3-6 | Alcoa Global Fasteners, Inc. |
51B581-3-6 | Lisi Aerospace Canada Corp |
51B581-3-6 | Northrop Grumman Systems Corporation |