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NAS584-1

NAS584-1

Machine Screw

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

100.0 degrees nominal countersink angle, 0.515 inches minimum and 0.562 inches maximum fastener length, flat countersunk head style, 0.502 inches minimum and 0.507 inches maximum head diameter, 36.0 rockwell c minimum and 40.0 rockwell c maximum hardness rating

NSN: 5305-00-631-9343
Federal Supply Group: Hardware and Abrasives
Federal Supply Classification: 5305 -Screws
Item Identification Number: 00-631-9343
Requires Demilitarization?: Yes
INC: 06657
Assigment Date: Tue, Jan 1, 1963
Schedule B Code: 7318152000
Countersink Angle: 100.0 degrees nominal
Fastener Length: 0.515 inches minimum and 0.562 inches maximum
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Head Diameter: 0.502 inches minimum and 0.507 inches maximum
Head Style: flat countersunk
Internal Drive Style: high-torque
Minimum Tensile Strength: 160000 pounds per square inch
Nominal Thread Diameter: 0.250 inches
Screw Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4130
Screw Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response
Screw Surface Treatment: cadmium and chromate
Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.409 inches minimum and 0.454 inches maximum
Thread Quantity Per Inch: 28
Thread Series Designator: unf

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-631-9343?: The FSCG of the NSN 5305-00-631-9343 is 5305

Does the NSN 5305-00-631-9343 have a Schedule B code assigned?: Yes, the Schedule B code is 7318152000

Does NSN 5305-00-631-9343 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-00-631-9343 contain precious materials?: Precious metal content is unknown

Does NSN 5305-00-631-9343 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.