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NAS6605D28

Close Tolerance Bolt - Drilled Shank

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Description

Close Tolerance Bolt - Drilled Shank

Specifications

Alternate Part Number NAS1305-28D
Country of Origin USA
Distance From Head Largest Bearing Surface To Shank Hole Center 2.013 inches first hole and 2.063 inches first hole
Fastener Length Between 2.204 inches and 2.234 inches
Grip Diameter Between 0.3110 inches and 0.3120 inches
Grip Length Between 1.740 inches and 1.760 inches
Hardness Rating 36.0 rockwell c and 40.0 rockwell c
Head Height Between 0.156 inches and 0.171 inches
Head Style Dished hexagon
Material Steel
Material Specification Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response
Min. Tensile Strength (psi) 160000 pounds per square inch
NIIN 01-200-1409
NSN 5306-01-200-1409
Shank Unthreaded Hole Diameter 0.076 inches first hole and 0.086 inches first hole
Specification Data 80205-nas6605 professional/industrial association standard
Surface Finish 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads
Surface Treatment Chromate and cadmium
Surface Treatment Specification Qq-p-416 type 2 cl 2 federal specification single treatment response
Thread Class 3a
Thread Diameter 0.312
Thread Direction Right-hand
Thread Length Between 0.444 inches and 0.494 inches
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series UNJF
Thread Series Designator Unjf (fine thread with external controlled root radius)
Thread Size 1/4
Weight .005 lb
Width Between Flats Between 0.492 inches and 0.502 inches

Other sizes

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

Cross-reference

Interchangeable

Parts that share a National Stock Number or are listed as an alternate for NAS6605D28 — functionally equivalent.

  • NAS1305-28D Listed alternate 1/4-24 · 2-1/4 in · Dished hexagon · Steel

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