NSN 5305-01-591-0047
High Torque Screw
Head has a 1.40 degree radius dome.
Manufacturer part number HT4027-4-21 for national stock number 5305015910047.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-591-0047.
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MPN or Model
HT4027-4-21
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Schedule B
7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)) -
NMF (National Motor Freight)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.469 inches -
Fastener Length
Between 1.767 inches and 1.797 inches -
Head Style
Fillister countersunk -
Head Diameter
Between 0.390 inches and 0.395 inches -
Head Height
0.015 inches -
Grip Diameter
0.249 mils and 0.250 centimeters -
Point Length
0.045 inches -
Point Style
Flat -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
1.313 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Point Chamfer Angle
45.0 of standard range single treatment response -
Part Name Assigned By Controlling Agency
Screw, close tolerance, 100 degrees countersunk, reduced head, hi-torque, non-magnetic cres (125 ksi fsu) -
Material
Nickel alloy 718 -
Material Specification
Ams 5662 assn standard single material response -
Surface Treatment
Passivate -
Surface Treatment Specification
Ams 2700, method 1 assn standard single treatment response -
Thread Series Designator
Unjf
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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 5305-01-591-0047 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
HT4027-4-21 | Arconic Global Fasteners & Rings, |
HT4027-4-21 | Sps Technologies, Llc |
HT4027-4-21 | Huck International, Inc. |
ST3M557-4-21 | Boeing Company, The |
ST3M557-421 | Valley-todeco, Inc. |
ST3M557-4-21 | Saturn Fasteners Inc |
ST3M557-4-21 | Heartland Precision Fasteners, Inc. |
ST3M557-4-21 | Houston Precision Fasteners I, Lp |
HT4027-4-21 | Sps Technologies, Llc |
ST3M668-4-21 | Camcar Llc |
HT4027-4-21 | Sps Technologies, Llc |
11923-4-21 | Reid Products Inc. |
WC4027-4-21 | West Coast Aerospace Inc |
HT4027-4-21 | Hi-shear Corporation |
HT4027-4-21 | Sps Technologies, Llc |
HT4027-4-21 | Alcoa Global Fasteners, Inc. |
HT4027-4-21 | Lisi Aerospace Canada Corp |
ST3M557-4-21 | Linread Ltd |