NSN 5305-01-050-2124
High Torque Screw
Between 0.322 inches and 0.369 inches fastener length, flat countersunk head style, between 0.256 inches and 0.261 inches head diameter, grip diameter: between 0.1625 inches and 0.1635 inches .
Manufacturer part number 51B581-2-1 for national stock number 5305010502124.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-050-2124.
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MPN or Model
51B581-2-1
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Thread Class
3a -
Thread Length
0.260 inches -
Fastener Length
Between 0.322 inches and 0.369 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.256 inches and 0.261 inches -
Grip Diameter
Between 0.1625 inches and 0.1635 inches -
Grip Length
Between 0.052 inches and 0.072 inches -
Countersink Angle
100.0 degrees
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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 5305-01-050-2124 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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51B581-2-1 | Northrop Grumman Technical Services, |
51B581-2-1 | Northrop Grumman Systems Corporation |