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NAS517-3-21

Close Tolerance Flat Head Screw - 100 Degree

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Description

NAS 517-3-21 Close Tolerance Flat Head Screw - 100 Degree

Specifications

Countersink Angle Between 99.0 degrees and 101.0 degrees
Country of Origin USA
Fastener Length Between 1.704 inches and 1.749 inches
Finish Cadmium per QQ-P-416 Type II Class 2
Grip 1.312
Hardness Rating Between 36.0 rockwell c and 40.0 rockwell c
Head Diameter Between 0.337 inches and 0.387 inches
Head Style Flat Head, Flat countersunk
Internal Drive Style Cross recess type 1
Length 1.719
Material Steel
Material Specification Mil-s-6050 military specification single material response or an-s-9 military standard single material response
Min. Tensile Strength (psi) 160000 pounds per square inch
NIIN 00-206-4398
NSN 5305-00-206-4398
Size 10-32
Sold In EA
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 type 2 class 3 federal specification single treatment response
Thread Class 3a
Thread Diameter 0.190
Thread Direction Right-hand
Thread Length Between 0.315 inches and 0.452 inches
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Designator Unf (fine thread)
Thread Size 10
Weight 0.015 lb

Cross-reference

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Catalog data updated 2026-07-05. Report a data error