NSN 5305-01-057-0354
High Torque Screw
Between 1.829 inches and 1.859 inches fastener length, flat countersunk head style, between 0.515 inches and 0.566 inches head diameter, grip diameter: between 0.3740 inches and 0.3745 inches .
Manufacturer part number NAS1581V6T20 for national stock number 5305010570354.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-057-0354.
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MPN or Model
NAS1581V6T20
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Schedule B
8109.90.0000 (Zirconium and articles thereof nesoi) -
NMF (National Motor Freight)
136500 - Metal NOI/metal Alloys NOI -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.569 inches and 0.619 inches -
Fastener Length
Between 1.829 inches and 1.859 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.515 inches and 0.566 inches -
Grip Diameter
Between 0.3740 inches and 0.3745 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.375 inches -
Grip Length
Between 1.240 inches and 1.260 inches -
Thready Qty Per Inch (tpi)
24 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Countersink Angle
100.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Titanium alloy uns r54520 -
Material Specification
Nas621 assn standard single material response -
Thread Series Designator
Unjf -
Specification Data
80205-nas1581 professional/industrial association 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 5305-01-057-0354 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
NAS1581V6T20 | National Aerospace Standards |
NAS1581K6T20 | National Aerospace Standards |