OmniSynk Distribution Services

BACB30LU4-18

Screw, Close Tolerance

Part number
BACB30LU4-18
NSN
5305-01-203-1664
NIIN
012031664
Item name
Screw, Close Tolerance
Manufacturer
Alcoa Global Fasteners Inc.
CAGE code
06950
FSC
5305 — Screws
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
0.425 in nominal
Fastener Length
1.540-1.560 in
Head Style
Flat countersunk
Head Diameter
0.455-0.510 in
Grip Diameter
0.2485-0.2495 in
Internal Drive Style
Cross recess type 1
Nominal Thread Diameter
0.250 in
Grip Length
1.115-1.135 in
TPI
28
Countersink Angle
99-100 degrees
Material
Steel 4340 or 8740 (MIL-S-5000/6049/AMS6322)
Surface Treatment
Cadmium, QQ-P-416
Thread Series
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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