The 1427NCGM20LB is the large-range M20x1.5 black nylon cordgrip in the 1427NCG series. It fits the same 20 mm (0.79 in) mounting hole as the standard M20 size while accepting thicker cable, giving installers and panel builders a liquid-tight, strain-relieved entry where a cable enters or leaves an enclosure.
Cable range is 10 mm (0.39 in) to 14 mm (0.55 in). The large opening and NBR (nitrile rubber) seal accept a wide range of diameters, and the strain relief elements tighten in a circular sequence on the sealing ring to hold the cable without twisting or damaging it. The manufacturer advises choosing the cordgrip with the smallest maximum diameter that fits.
The 1427NCGM20LB has an outer length (L) of 28 mm (1.10 in) and an inner thread length (T) of 9 mm (0.35 in), and it ships with a nylon locknut and EPDM o-ring. The torque table lists M20 (large) at 4–5 N-m for the sealing nut and 3.5–4.5 N-m for the locknut, as a guide that can vary depending on the application.
Finished in black (RAL 9005), the series is designed to meet NEMA Type 4, 4X, 6, 6P, 12 and 13 with IP68 protection, has a UL94 V-2 flammability rating and is UL listed. Static operating temperature is -40°C to 100°C (up to 120° instantaneous); dynamic is -20°C to 80°C (up to 100° instantaneous). RoHS and REACH compliant; bagged at 0.03 lbs (0.01 kg). Gray equivalent: 1427NCGM20LG.
| Series | 1427NCG Liquid-Tight Cordgrips (Nylon) |
| Description | Cordgrip - black nylon, metric |
| Thread Type | Metric |
| Product Type | Cord Grip (Cable Gland) |
| Gray Equivalent | 1427NCGM20LG |
| Thread Size (D) | M20x1.5 |
| Outer Length (L) | 1.10 in (28 mm) |
| Cable Diameter Max | 0.55 in (14 mm) |
| Cable Diameter Min | 0.39 in (10 mm) |
| Mounting Hole Diameter | 0.79 in (20 mm) |
| Inner Thread Length (T) | 0.35 in (9 mm) |
| UPC | 623980781167 |
| UNSPSC | 39121431 |
| Included | Nylon locknut and EPDM o-ring |
| Locknut Torque (Guide, M20 Large) | 3.5–4.5 N-m |
| Sealing Nut Torque (Guide, M20 Large) | 4–5 N-m |
| Packaging Type | Bag |
| Shipping Weight | 0.03 lbs (0.01 kg) |
| Seal | NBR (nitrile rubber) |
| Color | Black (RAL 9005) |
| Material | Nylon |
| IP Rating | IP68 |
| NEMA Types | Designed to meet NEMA Type 4, 4X, 6, 6P, 12 & 13 |
| Flame Rating | UL94 V-2 |
| Operating Temperature (Static) | -40°C to 100°C (up to 120° instantaneous) |
| Operating Temperature (Dynamic) | -20°C to 80°C (up to 100° instantaneous) |
| UL | UL listed |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Cable from 10 mm (0.39 in) to 14 mm (0.55 in) in diameter.
Both use an M20x1.5 thread in a 20 mm hole; the 1427NCGM20B takes 6–12 mm cable with a 27 mm outer length, while the 1427NCGM20LB takes 10–14 mm cable with a 28 mm outer length.
As a guide for M20 (large): 4–5 N-m on the sealing nut and 3.5–4.5 N-m on the locknut. Actual values can vary depending on the application.
Yes, the gray equivalent is 1427NCGM20LG.
A nylon locknut and an EPDM o-ring.
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