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NAS428HK4A12

Bolt, Machine

Part number
NAS428HK4A12
NSN
5306-00-690-9410
NIIN
00-690-9410
Item name
Bolt, Machine
Manufacturer
National Aerospace Standards
CAGE code
80205
FSC
5306 — Bolts
Unit of issue
EA
DEMIL code
A

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Technical characteristics

Thread Class
3A
Thread Direction
Right-hand
Thread Length
1.188-1.219 inches
Fastener Length
1.250 inches nominal
Head Style
Crowned hexagon
Head Height
0.141 inches nominal
Width Between Flats
0.438 inches nominal
Hole Diameter
0.046 inches nominal
Nominal Thread Diameter
0.250 inches
Grip Length
0.031-0.062 inches
Hole Quantity
1 (Drilled)
Features
Finished head, slot in end of shank
Thread Quantity per Inch
28
Min Tensile Strength
125,000 psi
Hardness
26.0-32.0 Rockwell C
Material
Steel comp 4037/4130/8630/8735/8740/4140
Surface Treatment
Cadmium+chromate per QQ-P-416 ty2 cl3
Thread Series
UNF
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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