Zoro Select Clean Room Buna-N O-Ring Dash 221 PK25
Pack of 25 Buna-N O-rings rated 70A durometer, dash 221, meeting clean-room, FDA and ISO Class 10 standards
- Clean-room rated for ISO Class 10 environments
- FDA-compliant Buna-N material for food contact
- Metal-detectable design aids contamination control
- 70A durometer provides medium-hard sealing performance
- Pack of 25 O-rings with dash number 221
Clean Room Buna-N O-Ring Pack
This pack contains twenty-five white Buna-N O-rings manufactured to clean-room standards. Each ring meets FDA and ISO Class 10 requirements for controlled environments. The material carries a 70A durometer rating for medium-hard sealing performance. The dash 221 size fits standard inch-dimension grooves.
Suited For Static Seals In Regulated Lines
These rings suit maintenance teams that need metal-detectable elastomers for food, pharmaceutical or cosmetic processing lines. They are not X-ray detectable, so facilities that rely on X-ray inspection for foreign-object detection should evaluate alternative materials. Buyers who need larger cross-sections or different dash numbers must source other sizes.
Verify Groove Dimensions Before Ordering
Confirm that the gland calls for a dash 221 profile with a nominal 1 7/16 inch inside diameter and 1/8 inch cross-section. The actual inside diameter measures 1.4 inches and the actual width measures 0.139 inches. The actual outside diameter is 1.699 inches. Ensure the mating hardware matches these inch-system dimensions.
How it compares
Measured against everything we stock in Threadlockers & Sealants, at today’s prices. Recalculated every night.
- Price $15.99
- Pricier than about 75% of the 147 comparable items (median $11.99).
Specifications
| Product | |
|---|---|
| Brand name | ZORO SELECT |
Questions about this item
What groove dimensions do I need so the Dash 221 O-ring seats correctly?
The O-ring has an actual inside diameter of 1.4 in, an actual width of .139 in and an actual outside diameter of 1.699 in; design the groove to those dimensions for a proper fit.
Will the white Buna-N material contaminate a clean-room line rated ISO Class 10?
The rings meet 000 Clean Room and FDA requirements and are rated for ISO Class 10, so they are approved for that environment.
How can I confirm the 70A durometer after installation?
Press the installed ring with a calibrated durometer; a reading of 70A confirms the medium-hard specification is intact.
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