NAS1581K4R7

Screw, Close Tolerance

Part number

NAS1581K4R7

NSN

5305-01-674-6272

NIIN

01-674-6272

Item name

Screw, Close Tolerance

Manufacturer

Eads Construcciones Aeronauticas

CAGE code

0117B

FSC

5305

Unit of issue

EA

DEMIL code

A

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Alternate part numbers

• NAS1581K4R7G CAGE 0117B
• NAS1581K4R7G CAGE 80205

Technical characteristics

Thread Class

3A

Thread Direction

Right-hand

Head Style

Flat countersunk

Nominal Thread Diameter

0.2500 inches

Thread Quantity per Inch

28

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Part Name Assigned BY Controlling Agency

Bolt, shear, 100 degree flush reduced head, offset cruciform, offset cruciform-ribbed and dovertail slot, 95 ksi fsu

Material

Titanium alloy overall

Thread Series Designator

UNJF

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