Part Number: 204-040-787-1

Description: Internal Wrenching Bolt for Bell 204 NSN 5306-00-488-7461.

Properties

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.636 inches and 0.676 inches
Fastener Length:
Between 1.646 inches and 1.666 inches
Head Diameter:
Between 0.928 inches and 0.938 inches
Head Height:
Between 0.552 inches and 0.572 inches
Hole Diameter:
0.055 inches
Internal Drive Style:
Hexagon
Thread Diameter:
0.562 inches
Width Across Flats:
Between 0.438 inches and 0.441 inches
Hole Quantity:
4
Hole Type:
Drilled
Thready Qty Per Inch (tpi):
18
Hole Configuration Style:
Round
Surface Finish:
125.0 microinches
Material:
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Material Specification:
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
Surface Treatment:
Oxide
Surface Treatment Specification:
Bps fnb 4084, fscm 97499 mfr ref single treatment response
Thread Series Designator:
Unf

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NSN: 5306-00-488-7461 bolt,internal wrenching
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