Part Number NAS1790-3-4 Machine Screw

SKU: 5305016560449

NAS179034 Machine Screw Datasheet

National aerospace standards part number NAS1790-3-4

Thread Direction:

Right-hand

Thread Length:

0.338 inches

Fastener Length:

Between 0.573 inches and 0.603 inches

Head Style:

Flat countersunk

Head Diameter:

Between 0.339 inches and 0.381 inches

Internal Drive Style:

High-torque

Thread Diameter:

0.1900 inches

Thready Qty Per Inch (tpi):

Countersink Angle:

Between 99.0 degrees and 101.0 degrees

Part Name Assigned By Controlling Agency:

Bolt

Screw Material:

Steel comp 4140 or steel comp 4340 or steel comp E4340 or steel comp 8740

Bearing Surface Of Head Surface Treatment:

Cadmium

Head Surface Treatment:

Cadmium

Screw Surface Treatment:

Cadmium

Shank Surface Treatment:

Cadmium

Bearing Surface Of Head Surface Treatment Specification:

AMS-QQ-P-416, type ii, class 2 assn standard single treatment response

Head Surface Treatment Specification:

AMS-QQ-P-416, type ii, class 2 assn standard single treatment response

Screw Surface Treatment Specification:

AMS-QQ-P-416, type ii, class 2 assn standard single treatment response

Shank Surface Treatment Specification:

AMS-QQ-P-416, type ii, class 2 assn standard single treatment response

Manufacturer Cage:

80205

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