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NAS1581K4R6

Screw, Close Tolerance

Part number
NAS1581K4R6
NSN
5305-01-707-0419
NIIN
01-707-0419
Item name
Screw, Close Tolerance
Manufacturer
National Aerospace Standards
CAGE code
80205
FSC
5305
Unit of issue
EA
DEMIL code
A

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Technical characteristics

Thread Class
3A
Thread Direction
Right-hand
Thread Length
0.403 inches nominal
Fastener Length
0.844 inches nominal
Head Style
Flat countersunk
Head Diameter
0.3988 inches nominal
Head Height
0.090 inches maximum
Grip Diameter
0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style
Offset cruciform (torque set)
End Item Identification
1510-33-209-1552; A400M cargo-transport airplane (T.23)
Nominal Thread Diameter
0.250 inches
Thread Quantity per Inch
20
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned BY Controlling Agency
Bolt, shear, 100 flush reduced head, offset cruciform
Material
Titanium overall
Surface Treatment
Aluminum overall
Thread Series Designator
UNJF
Catalogue data is compiled from public DLA/FLIS sources and is provided for identification. Availability, condition and certification are confirmed on quotation. OmniSynk Distribution Services is a stocking distributor.

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