NSN 5305-01-220-6497
High Torque Screw
Internal drive ribbed.
Manufacturer part number SC1779-4-8 for national stock number 5305012206497.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-220-6497.
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MPN or Model
SC1779-4-8
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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)
096640 - Screws, Iron Or Steel -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.386 inches and 0.453 inches -
Fastener Length
Between 0.896 inches and 0.943 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.464 inches and 0.507 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Grip Length
Between 0.490 inches and 0.510 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
220000 pounds per square inch -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches threads -
Part Name Assigned By Controlling Agency
Navy special project -
Material
Steel comp h11 -
Material Specification
Ams6487 assn standard single material response -
Surface Treatment
Cadmium or cadmium and chromate -
Surface Treatment Specification
Nas672 assn standard 1st treatment response or mil-s-8837, ty2, cl2 military specification 2nd 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 5305-01-220-6497 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
SC1779-4-8 | Arconic Global Fasteners & Rings, |
PBF1202-4-8 | Sps Technologies, Llc |
HR204-4-8 | Hi-shear Corporation |
106706T-4-8 | Sps Technologies, Llc |
HR204-4-8 | Lisi Aerospace Canada Corp |
GB510CE4-8 | Northrop Grumman Systems Corporation |
HR204-4-8 | Naval Inventory Control Point |
106706T-4-8 | Sps Technologies, Llc |