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Product Specifications:
| Item | O-Ring |
| Actual Inside Dia. | 20.955" |
| Actual Outside Dia. | 21 3/8" |
| Application | Standard |
| Color | Black |
| Cross Section | 3/16" |
| Cross Section Shape | Round |
| Dash Number | 390 |
| Durometer | 90 Shore A |
| Durometer Rating | Very Hard |
| Material | Buna N |
| Meets/exceeds | ASTM D2000, NBR 90 |
| Metal Detectable | Not Metal Detectable |
| Nominal Inside Dia. | 21" |
| Nominal Outside Dia. | 21 3/8" |
| Nominal Width | 0.188" |
| O-ring Material | Buna N |
| O-ring Material Compatibility | Anhydrous Ammonia, Animal Fats, Carbon Dioxide, Detergents, Diesel Oil, Fatty Acids, Gasoline, Hydraulic Oils (Petroleum), Kerosene, Liquid Propane Gas, Lubricating Oils (Petroleum), Mineral Oil, Natural Gas, Nitrogen, Silicone Grease, Sulfuric Acid (Dilute), Vegetable Oils, Water |
| Operating Temperature - Maximum | 248°F |
| Operating Temperature - Minimum | -4°F |
| Outside Diameter - Actual | 21.375" |
| Product Type | O-Ring |
| System Of Measurement | Imperial |
| Width - Actual | 0.21" |
| X-ray Detectable | No |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Durometer | Metal Detectable | Color | Cross Section Shape | Material | Temp. Range | Dash Number | Actual Outside Dia. | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
PPT03304G | - | - | - | - | - | - | - | - | 1 | €93.40 | |
![]() |
PPTXG903G | - | - | - | - | - | - | - | - | 1 | €56.59 | |
![]() |
PPTXG923G | - | - | - | - | - | - | - | - | 2 | €57.92 | |
![]() |
PPTLS0708G | - | - | - | - | - | - | - | - | 1 | €46.47 | |
![]() |
PPTLS2218G | - | - | - | - | - | - | - | - | 1 | €93.02 | |
![]() |
PPTLS2223G | - | - | - | - | - | - | - | - | 1 | €69.34 | |
![]() |
PPTLS5014G | - | - | - | - | - | - | - | - | 1 | €46.47 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GRAINGER U38805.018.2100 O-Ring, 21 Inch Inside Dia, 21 3/8 Inch Outside Dia, 90 Shore A, Black
€14.13 /unit







