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Locknuts Accessories for cable glands, available in brass, zinc plated mild steel, aluminum and stainless steel

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Nickel Plated Brass – Recommended in securing brass cable glands and accessories to a gland plate or into equipment.

In metric thread form CMP offers brass locknuts in a choice of standard duty and heavy duty options for sizes up to and including M32. The part numbers are distinguished by an additional letter H, e.g. 20LN = standard duty, and 20HLN = heavy duty. From size M40 all brass metric locknuts are considered to be heavy duty.

Aluminum – Recommended when installing aluminum Cable Glands to prevent the galvanic corrosion which can occur when dissimilar metals are coupled together.

Ordering references shown in Nickel Plated Brass.

No Data Entered

NPT
Ordering Reference (NPT)Thread Diameter 'A'Minimum ThicknessThickness Across Flats Dimension 'B'Across Corners Diameter 'C'
050NPTLN5½" NPT0.191.061.23
075NPTLN5¾”" NPT0.191.301.50
100NPTLN51" NPT0.191.161.86
125NPTLN51 ¼" NPT0.191.972.27
150NPTLN51 ½" NPT0.202.362.73
200NPTLN52" NPT0.202.953.49
250NPTLN52 ½" NPT0.393.313.82
300NPTLN53" NPT0.393.944.55
350NPTLN53 ½" NPT0.444.505.20
350NPTLN54" NPT0.475.125.91
All dimensions shown are in inches unless otherwise stated
Metric
Ordering Reference (Metric)Thread Diameter 'A'Minimum ThicknessAcross Flats Dimension 'B'Across Corners Diameter 'C'
16LN5M16 X 1.50.130.871.00
20LN5M20 X 1.50.130.941.09
25LN5M25 X 1.50.131.181.36
32LN5M32 X 1.50.131.421.64
40LN5M40 X 1.50.191.812.09
50LN5M50 X 1.50.252.172.50
63LN5M63 X 1.50.252.763.18
75LN5M75 X 1.50.253.313.82
90LN5M90 X 2.00.374.174.82
100LN5M100 X 2.00.374.845.59
All dimensions shown are in inches unless otherwise stated