NSN 5305-01-186-2166
High Torque Screw
Between 1.598 inches and 1.628 inches fastener length, flat countersunk head style, between 0.456 inches and 0.508 inches head diameter, grip diameter: between 0.249 inches and 0.250 inches .
Manufacturer part number NAS4003 for national stock number 5305011862166.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-186-2166.
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MPN or Model
NAS4003
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.425 inches -
Fastener Length
Between 1.598 inches and 1.628 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.456 inches and 0.508 inches -
Grip Diameter
Between 0.249 inches and 0.250 inches -
Internal Drive Style
Tri-wing recess -
Thread Diameter
0.250 inches -
Grip Length
Between 1.178 inches and 1.198 inches -
Features Provided
Finished head -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Iron alloy 660 -
Material Specification
Ams 5731 assn standard single material response or ams 5737, uns k66286 assn standard single material response -
Surface Treatment
Passivate -
Surface Treatment Specification
Qq-p-35 federal specification single treatment response -
Supplementary Features
Tri-wing recess no. Nas4000-6 -
Thread Series Designator
Unjf -
Specification Data
80205-nas4003 professional/industrial association standard and 80205-nas4204/canceled/ professional/industrial association standard -
Nondefinitive Specification/std Data
1 class and a type and 3 table and 0.250-28 size
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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 5305-01-186-2166 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
NAS4003 | National Aerospace Standards |
NAS4204U19 | National Aerospace Standards |