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NAS1581K3T18

Screw, Close Tolerance

Part number
NAS1581K3T18
NSN
5305-01-455-9778
NIIN
01-455-9778
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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Alternate part numbers

Technical characteristics

Thread Class
3A
Thread Direction
Right-hand
Thread Length
0.363 inches nominal
Fastener Length
1.348 inches minimum and 1.378 inches maximum
Head Style
Flat countersunk
Head Diameter
0.257 inches minimum and 0.304 inches maximum
Grip Diameter
0.1890 inches minimum and 0.1895 inches maximum
Internal Drive Style
Offset cruciform (torque set)
Nominal Thread Diameter
0.190 inches
Grip Length
1.115 inches minimum and 1.135 inches maximum
Thread Quantity per Inch
32
Minimum Tensile Strength
160000 pounds per square inch
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Material
Titanium alloy uns R56400 overall
Material Document and Classification
AMS4928 assn std single material response overall or AMS4967 assn std single material response overall
Thread Series Designator
UNJF
Specification/Standard Data
80205-NAS1581 professional/industrial association standard
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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