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NSI Industries RSR-312 - Cord Grip, alum, 1" NPT, cable range .625 - .750, Form Size 4
NSI Industries

RSR-312

UPC: 785411113128


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Overview

The NSI Industries RSR-312 aluminum cord grip provides secure cable entry and strain relief for industrial applications. Engineered for 1-inch NPT threaded hubs, this cord grip accommodates cable diameters from 0.625 to 0.750 inches, ensuring a tight fit for reliable strain relief and environmental sealing. Constructed from durable aluminum, the RSR-312 resists corrosion and withstands exposure to moisture, dirt, and coolants in both indoor and outdoor environments. Its unique design features a combination tightening surface with hex and knurled areas for precise torque control, while an optional embedded Viton® O-ring delivers a watertight, corrosion-resistant seal. The anti-friction washer between the nut and bushing simplifies installation and reduces wear. Compatible with stainless steel wire mesh for added pullout resistance, this cord grip is part of the Tuff Seal™ RSR Series, which spans conduit sizes from 1/4" to 3" in multiple materials including machined aluminum, nickel-plated aluminum, steel, stainless steel, nylon, and Valox®. The RSR-312 is ideal for maintaining cable integrity in demanding industrial settings where environmental protection and mechanical stability are critical.
  • 1-inch NPT threaded hub for secure enclosure connection
  • Accommodates cable diameters from 0.625 to 0.750 inches
  • Aluminum construction resists corrosion and environmental damage
  • Combination hex/knurled tightening surface for precise torque control
  • Optional Viton® O-ring provides watertight, corrosion-resistant seal

Specifications

Enclosure
IP52, IP54, IP65, IP67
Environmental Conditions
Flammability: UL 94V-2
Finish
Aluminum
Material
Aluminum
Material Quality
Aluminum
Mounting Type
Threaded (NPT)
Operating Temperature, Maximum
250 F
Operating Temperature, Maximum
121.1111 °C
Operating Temperature, Minimum
-40 F
Operating Temperature, Minimum
-40 °C
Series
RSR
Size
1" NPT
Temperature Rating
-40 to 121 Deg C C
Package Dimensions (L x W x H)
2.08 IN x 1.72 IN x 1.46 IN
Package Dimensions (L x W x H)
5.2832 cm x 4.3688 cm x 3.7084 cm
Package Weight (Imperial)
0.163 L
Package Weight (Metric)
0.074 kg
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Frequently Asked Questions

How do I order locknuts or O-rings for RSR Cord Grips?

To order locknuts, add "-L" to the part number. For O-rings, add "-R" to the part number.

What is the inside body diameter for a 1 inch RSR Aluminum Cord Grip?

For a 1 inch RSR Aluminum Cord Grip (Series 300), the minimum inside body diameter (Dimension A) is 1.00 inch.

How can I get RSR Cord Grips in nickel-plated aluminum?

To obtain nickel-plated aluminum RSR Cord Grips, add "N" to the end of the prefix, for example, RSRN-309. These are suitable for corrosive environments.

What is the recommended knockout hole size for a 1 inch NPT hub?

For a 1 inch NPT hub, the recommended knockout hole size ranges from 1.359 to 1.406 inches.

Are RSR Series products RoHS compliant?

Yes, all Tuff-Seal and Tuff-Link products, including the RSR Series, are fully compliant with the current RoHS Directive.

What material is the wire mesh made of?

All wire mesh used with RSR Cord Grips is made of stainless steel.

How can I order RSR Cord Grips with a wire mesh?

To order an RSR Cord Grip with a wire mesh, add "-E" to the end of the part number. For example, RSR-312-E includes a mesh.

What conduit size is RSR-312 compatible with?

The RSR-312 cord grip is designed for a 1 inch NPT conduit size.

What is the cable range for RSR-312?

The RSR-312 cord grip accommodates a cable range of .625 to .750 inches.

What is the cable range for RSR-312?

The RSR-312 cord grip accommodates a cable range of .625 to .750 inches.

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