NSN 5305-00-550-1573
High Torque Screw
1.719 inches fastener length, flat countersunk head style, between 0.497 inches and 0.507 inches head diameter, grip diameter: between 0.2490 inches and 0.2495 inches .
Manufacturer part number ST3M454-4LD20 for national stock number 5305005501573.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-550-1573.
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MPN or Model
ST3M454-4LD20
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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) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.469 inches -
Fastener Length
1.719 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.497 inches and 0.507 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.081 inches first hole -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
1.250 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
100.0 degrees -
Distance From Head Largest Bearing Surface To Shank Hole Center
1.583 inches first hole and 1.623 inches first hole -
Material
Stainless steel -
Surface Treatment
Passivate -
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 5305-00-550-1573 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
ST3M454-4LD20 | Boeing Company, The |
HT4025L4D20 | Alcoa Fastening Systems |
HT4025L4D20 | Hi-shear Corporation |
HT4025L4D20 | Sps Technologies, Llc |
HT4025L4D20 | Alcoa Global Fasteners, Inc. |
HT4025L4D20 | Lisi Aerospace Canada Corp |
HT4025L4D20 | Huck International, Inc. |
HT4025L4D20 | Sps Technologies, Llc |
11905-4LD20 | Reid Products Inc. |
HT4025L4D20 | Satair A/s |
HT4025L4D20 | Huck Intl Inc |