OmniSynk Distribution Services

NAS1221R3E8

Screw, Machine

Part number
NAS1221R3E8
NSN
5305-01-590-5345
NIIN
01-590-5345
Item name
Screw, Machine
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
0.338 inches nominal
Fastener Length
0.824 inches minimum and 0.854 inches maximum
Head Style
Flat countersunk
Head Diameter
0.344 inches minimum and 0.385 inches maximum
Internal Drive Style
Torque set
Nominal Thread Diameter
0.190 inches
Thread Quantity per Inch
32
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned BY Controlling Agency
Bolt 100 degrees flush head self-locking optional
Screw Material
Iron alloy 660
Screw Surface Treatment
Passivate
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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