We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Brown Viton O-ring, round cross-section, 5-1/8 inch inside diameter

Zoro Select

Zoro Select ZUSAVB75430 Viton O-Ring 5-1/8 in Brown

SKU CH-N6HX-4S0CF

A Viton O-ring with a 5.1 in inside diameter and .275 in width, rated for -15 to 400 degrees F and FDA compliant

  • Viton material resists chemicals and heat up to 400 °F
  • Metal-detectable design aids contamination control in food and pharma lines
  • FDA-compliant formulation meets food-contact regulations
  • Precise 5.1 in ID and .275 in width ensure reliable sealing
  • Dash 430 sizing matches standard gland dimensions for drop-in fit

Sealing Solution for High-Temperature Applications

This Viton O-ring suits maintenance teams and equipment builders who need reliable sealing in harsh chemical or thermal environments. The fluorocarbon material resists degradation from oils, fuels and many solvents. Its brown colour aids visual identification during assembly or inspection. The medium-hard durometer balances extrusion resistance with conformability.

Dimensions and Compliance Details

The nominal inside diameter is 5-1/8 inches with a 1/4-inch cross-section width, while actual measurements are 5.1 inches ID and 0.275 inches width. Dash number 430 confirms the standard size reference for procurement systems. The ring is FDA compliant for food-contact suitability and carries a California Proposition 65 notice for reproductive-hazard chemicals. It is metal detectable but not X-ray detectable.

Temperature Range Defines Operating Limits

Continuous service spans from -15 degrees to 400 degrees Fahrenheit, making this the decisive specification for selecting the part. Below the minimum the material may stiffen and leak; above the maximum it can degrade rapidly. Buyers needing cryogenic sealing or sustained exposure beyond 400 degrees F must choose a different compound.

How it compares

Measured against everything we stock in Threadlockers & Sealants, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 147 comparable items (median $11.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Will the Viton material need replacement after long exposure near the 400 Degrees F limit?

Viton handles continuous temperatures up to 400 Degrees F; sustained operation at the top of the range will accelerate aging, so plan inspection intervals accordingly.

What is the first limit reached when the O-ring stays compressed at high temperature all day?

Continuous heat near 400 Degrees F combined with constant 1/4 in compression causes permanent set in the 75A durometer Viton before chemical breakdown occurs.

Does the brown Viton O-ring generate noticeable heat or friction when installed in a rotating shaft seal running all day?

The O-ring itself produces no heat; any temperature rise comes from shaft friction against the 0.275 in cross-section, not from the seal material.

More in Threadlockers & Sealants

Similar items