The 1427NCGPG21G is the gray (RAL 7035) version of Hammond's PG21 nylon cordgrip, a liquid-tight cable gland for cable entering or leaving an enclosure. It is sized for cable between 13 mm (0.51 in) and 18 mm (0.71 in) in diameter, making it a fit for integrators and facilities teams routing medium-gauge cable into gray housings.
Its nylon body houses an NBR (nitrile rubber) seal behind a large opening, so it accepts a wide range of cable diameters. As the cap is tightened, the strain relief elements close in a circular sequence on the sealing ring, securing the cable without twisting or damaging it. Each part comes with a nylon locknut and an EPDM o-ring.
Hammond suggests choosing the cordgrip with the smallest maximum diameter that fits your cable; torque values are a guide and can vary depending on the application.
The 1427NCG series offers IP68 protection and is designed to meet NEMA Type 4, 4X, 6, 6P, 12 and 13. It is UL listed with a UL94 V-2 rating and is RoHS and REACH compliant, operating from -40°C to 100°C static (up to 120° instantaneous) and -20°C to 80°C dynamic (up to 100° instantaneous).
| Series | 1427NCG Liquid-Tight Cordgrips (Nylon) |
| Thread Type | PG thread, standard length |
| Product Type | Cord Grip (Cable Gland) |
| Long Description | cordgrip - grey nylon. |
| Short Description | CABLE GLAND |
| Thread Size (D) | PG21 |
| Outer Length (L) | 1.22 in (31 mm) |
| Wire Diameter (Max) | 0.71 in (18 mm) |
| Wire Diameter (Min) | 0.51 in (13 mm) |
| Mounting Hole Diameter | 1.14 in (29 mm) |
| Inner Thread Length (T) | 0.43 in (11 mm) |
| UPC | 623980541860 |
| UNSPSC | 39121431 |
| Part Number | 1427NCGPG21G |
| Black Equivalent Part Number | 1427NCGPG21B |
| Torque Note | Torque values are a guide; actual values can vary depending on the application |
| Included Items | Nylon locknut and EPDM o-ring |
| Selection Guidance | Use the cordgrip with the smallest maximum diameter that will fit the application |
| Locknut Torque (Max) | 7 N-m |
| Locknut Torque (Min) | 4 N-m |
| Sealing Nut Torque (Max) | 6 N-m |
| Sealing Nut Torque (Min) | 5 N-m |
| Packaging Type | Bag |
| Shipping Weight | 0.05 lbs (0.02 kg) |
| Color | Gray (RAL 7035) |
| Material | Nylon |
| Seal Material | NBR (nitrile rubber) |
| Strain Relief | Strain relief elements tighten in a circular sequence on the sealing ring without twisting or damaging the cable |
| O-Ring Material | EPDM |
| IP Rating | IP68 |
| NEMA Rating | 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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13 mm (0.51 in) minimum to 18 mm (0.71 in) maximum cable diameter.
A 29 mm (1.14 in) mounting hole.
For PG21 the guide is 5-6 N-m on the sealing nut and 4-7 N-m on the locknut; actual values can vary depending on the application.
The seal is NBR (nitrile rubber) and the included o-ring is EPDM; the body and locknut are nylon.
Yes, the black (RAL 9005) equivalent is 1427NCGPG21B.
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