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To be used with straight threaded adapter fittings when sealing at a port which has no relief for an "O" ring.
Earl’s AN 901 Aluminum Crush Washer - 177004ERL
$13.41
Features:
- Package of 10
Sizes and Connection Specifications:
- Product Details: AN 901 Aluminum Crush Washer, Fitting Size 4, I.D. 7/16", Package Of 10
- Fitting Size: #4 AN (AN -4 thread: 7/16-20, 20 TPI)