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NAS7503-3

Close Tolerance Bolt

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Description

Close Tolerance Bolt

Specifications

Countersink Angle Between 99.0 degrees and 101.0 degrees
Country of Origin USA
Fastener Length Between 0.496 inches and 0.526 inches
Grip 0.188 in
Grip Diameter Between 0.1885 inches and 0.1895 inches
Grip Length Between 0.178 inches and 0.198 inches
Head Angle 100 º
Head Diameter Between 0.338 inches and 0.381 inches
Head Style Flat countersunk
Head Type Countersunk
Industry Standards/Certification NAS7503
Internal Drive Style Cross recess type 1
Length 0.511 in
Material CRES
Material Specification Ams5731 assn standard single material response or ams5737 assn standard single material response
Minimum Shear Strength 95 ksi
Minimum Tensile Strength 160 ksi
NIIN 01-339-0225
NSN 5305-01-339-0225
Specification Data 80205-nas7503 professional/industrial association standard
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 ty2 cl2 federal specification single treatment response
Thread Class 3a
Thread Diameter 0.190
Thread Direction Right-hand
Thread Length 0.323
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series UNJF
Thread Series Designator Unjf (fine thread with external controlled root radius)
Thread Size 10-32
Thread Type Short Thread
Weight 0.0005 lb

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

  • NAS7403-3 NAS #10-32 · 0.511 in · Flat countersunk · Steel

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