NSN 5305-01-298-0646
High Torque Screw
Between 1.558 inches and 1.588 inches fastener length, flat countersunk head style, between 0.325 inches and 0.385 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .
Manufacturer part number 121557-3-A20B for national stock number 5305012980646.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-298-0646.
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MPN or Model
121557-3-A20B
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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) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.298 inches and 0.348 inches -
Fastener Length
Between 1.558 inches and 1.588 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.325 inches and 0.385 inches -
Grip Diameter
Between 0.1885 inches and 0.1895 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.190 inches -
Grip Length
Between 1.240 inches and 1.260 inches -
Features Provided
Dry film lubricant -
Thready Qty Per Inch (tpi)
32 -
Min. Tensile Strength (psi)
220000 pounds per square inch -
Hardness Rating
46.0 rockwell c and 50.0 rockwell c -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Surface Finish
32.0 microinches threads -
Material
Steel comp h11 -
Material Specification
Ams 6487 assn standard single material response -
Surface Treatment
Aluminum and chromate -
Surface Treatment Specification
Mil-c-83488 type 2 cl 3 military specification 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 5305-01-298-0646 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
121557-3-A20B | Sps Technologies, Llc |
121557-3-A20B | Sps Technologies, Llc |
AIC984B3-20 | Sps Technologies, Llc |
C7984B3-20 | Lockheed Martin Corporation |
H044B3-20 | Huck International, Inc. |
C7984B3-20 | Alcoa Global Fasteners, Inc. |
VT1693AS3-20 | Arconic Global Fasteners & Rings, |
PBF1165B3-20 | Sps Technologies, Llc |
H044B3-20 | Huck Intl Inc |
VT1693AS3-20 | Alcoa Global Fasteners, Inc. |