Standard Polypak® Rod/Piston U-Seal 5.750

Standard Polypak® Rod/Piston U-Seal 5.750" x 6.500" x 0.375" - AU/NBR

Marsoni

M251S

$80.07

Get it in 3 business days with 1 day shipping. Friday, May 29

Standard Polypak® Rod/Piston U-Seal 5.750" x 6.500" x 0.375" - AU/NBRProduct Details : Standard Polypak Rod Piston U Seal 5. 750" x 6. 500" x 0. 375" AU NBR Part No: 37505750 4615 Product Category: Symmetrical Seals Product Type: Rod Piston U Seal Profile: Standard Polypak Material(s): Polyurethane Nitrile Material Code: AU NBR Temperature Range: 65F to +200F ( 54C to +93C) Pressure Range: 5000 PSI ( 345 Bar) Surface Speed: < 1. 6 ft s (0. 5 m s) System Of Measurement: Inch Dimensions: 5. 750" x 6. 500" x 0. 375"

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Well build. Very solid for the price. I used #1 AWG cable. I don't like the pinch bolt connection. It tries to drill through the cable, and spreads the strands. Only about 2/3rds are pinched under the knurled bolt tip. I'll keep an eye on it, and if the connection heats up, I'll pull apart, straighten the strands, and tin the ends with solder so they don't crush much. See how that works. A concave, half circle piece under the pinch bolt would be better IMO. That would keep strands together as they crushed down.

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Reviewed in the United States on December 6, 2024

Verified Purchase

Meeikal

Lexington, US

★★★★★ 5

Solid choice for fuse holder

Size: 300A Fuse Holder

It’s awesome, solid connections for running 0 gauge wire. No issues after using for months! Might upgrade to using 0 gauge wire ferrules to use with this but for now everything is working well.

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Reviewed in the United States on January 14, 2026

Verified Purchase

Dana

Chelsea, US

★★★★★ 5

Would buy again

Size: 300A Fuse Holder

Works as described

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Reviewed in the United States on April 13, 2026