Rubber Grommet
Grommets can be used to fill holes in panels for cushioning, sealing, insulation and to protect wires and items passing through. Most rubber grommets come standard in either 60-Duro SBR Rubber or 50-Duro Buna. They are also available to meet Military Specifications and in other materials. Below is a list of standard sizes sorted by bore diameter.
PDF Version - Grommet Sizes
| Grommet Sizes | ||||||||||||
| A Bore Dia |
B Groove Width |
C Groove Dia |
D Outside Dia |
E Overall Thk |
Part # |
A Bore Dia |
B Groove Width |
C Groove Dia |
D Outside Dia |
E Overall Thk |
Part # |
|
| 7/64 | 3/64 | 1/2 | 11/16 | 9/32 | 1272 | 3/8 | 1/16 | 1/2 | 5/8 | 1/4 | 230 | |
| 1/8 | 1/32 | 3/16 | 1/4 | 3/32 | 1070 | 3/8 | 1/16 | 1/2 | 11/16 | 9/32 | 1724 | |
| 1/8 | 1/16 | 1/4 | 11/32 | 3/16 | 54G | 3/8 | 1/16 | 5/8 | 7/8 | 5/16 | 2281 | |
| 1/8 | 1/16 | 7/16 | 5/8 | 3/16 | 562 | 3/8 | 1/16 | 1 | 1 1/4 | 1/4 | 2299 | |
| 1/8 | 1/16 | 3/16 | 11/32 | 7/32 | 13-4-19 | 3/8 | 1/16 | 5/8 | 7/8 | 11/32 | 38-4-63 | |
| 1/8 | 1/16 | 1/4 | 11/32 | 7/32 | 13-4-25 | 3/8 | 3/32 | 7/16 | 5/8 | 9/32 | 38-6-44 | |
| 1/8 | 3/32 | 3/8 | 1/2 | 3/13 | 203 | 3/8 | 3/32 | 1/2 | 13/16 | 3/8 | 38-6-50 | |
| 1/8 | 3/32 | 3/8 | 1/2 | 5/16 | 2425 | 3/8 | 1/8 | 1/2 | 5/8 | 13/32 | 545 | |
| 5/32 | 1/16 | 1/4 | 3/8 | 3/16 | 1259 | 3/8 | 1/8 | 17/32 | 3/4 | 3/8 | 546 | |
| 5/32 | 1/16 | 9/32 | 15/32 | 19/64 | 1783 | 3/8 | 1/8 | 5/8 | 7/8 | 3/8 | 2858 | |
| 5/32 | 1/16 | 3/8 | 1/2 | 7/32 | 16-4-38 | 3/8 | 1/8 | 5/8 | 7/8 | 13/32 | 38-8-63 | |
| 5/32 | 1/16 | 1/2 | 11/16 | 9/32 | 16-4-50 | 3/8 | 3/16 | 9/16 | 13/16 | 3/8 | 896 | |
| 5/32 | 3/32 | 1/4 | 7/16 | 3/8 | 374 | 3/8 | 3/16 | 5/8 | 7/8 | 7/16 | 2758 | |
| 5/32 | 7/64 | 1/4 | 21/64 | 13/64 | 16-7-25 | 3/8 | 1/4 | 1/2 | 3/4 | 1/2 | 828 | |
| 3/16 | 1/32 | 5/16 | 7/16 | 7/32 | 1390 | 3/8 | 1/4 | 5/8 | 7/8 | 1/2 | 2558 | |
| 3/16 | 1/32 | 11/16 | 7/8 | 7/32 | 2045 | 3/8 | 3/8 | 9/16 | 3/4 | 3/4 | 2596 | |
| 3/16 | 1/16 | 9/32 | 7/16 | 7/32 | 382 | 13/32 | 1/16 | 1/2 | 11/16 | 1/4 | 41-4-50 | |
| 3/16 | 1/16 | 5/16 | 7/16 | 3/16 | 2286 | 13/32 | 1/16 | 9/16 | 13/16 | 5/16 | 41-4-56 | |
| 3/16 | 1/16 | 5/16 | 1/2 | 1/4 | 1453 | 27/64 | 1/16 | 9/16 | 3/4 | 1/4 | 42-4-56 | |
| 3/16 | 1/16 | 5/16 | * | 1/4 | 809 | 7/16 | 1/16 | 9/16 | 3/4 | 1/4 | 1787 | |
| 3/16 | 1/16 | 1/2 | * | 23/32 | 1135 | 7/16 | 1/16 | 11/16 | 15/16 | 5/16 | 2282 | |
| 3/16 | 1/16 | 9/16 | 3/4 | 3/16 | 2279 | 7/16 | 1/8 | 11/16 | 15/16 | 3/8 | 2860 | |
| 3/16 | 1/16 | 5/16 | 13/32 | 7/32 | 18-4-31 | 7/16 | 1/8 | 11/16 | 15/16 | 3/8 | 2533 | |
| 3/16 | 1/16 | 5/16 | 1/2 | 1/4 | 18-4-31B | 7/16 | 3/16 | 9/16 | 11/16 | 3/8 | 560 | |
| 3/16 | 3/32 | 9/32 | 7/16 | 7/32 | 1734 | 7/16 | 3/16 | 11/16 | 15/16 | 7/16 | 2760 | |
| 3/16 | 3/32 | 11/32 | 5/8 | 3/8 | 2537 | 7/16 | 1/4 | 11/16 | 15/16 | 1/2 | 2560 | |
| 3/16 | 3/32 | 9/32 | 13/32 | 5/16 | 19-6-28 | 1/2 | 1/16 | 13/16 | 1 1/16 | 5/16 | 2283 | |
| 3/16 | 3/32 | 5/16 | 1/2 | 9/32 | 19-6-31 | 1/2 | 1/16 | 1 | 1 1/4 | 1/4 | 2426 | |
| 3/16 | 1/8 | 5/16 | 7/16 | 1/4 | 2852 | 1/2 | 1/16 | 1 1/4 | 1 1/2 | 1/4 | 2284 | |
| 3/16 | 1/8 | 7/16 | 9/16 | 3/8 | 19-8-44 | 1/2 | 3/32 | 3/4 | 7/8 | 11/32 | 452 | |
| 3/16 | 3/16 | 5/16 | 7/16 | 5/16 | 2752 | 1/2 | 3/32 | 3/4 | 31/32 | 9/32 | 1862 | |
| 3/16 | 3/16 | 3/8 | 5/8 | 3/8 | 704 | 1/2 | 3/32 | 25/32 | 1 | 11/32 | 2341 | |
| 3/16 | 1/4 | 5/16 | 7/16 | 3/8 | 2552 | 1/2 | 3/32 | 1 3/8 | * | 1/4 | 1128B | |
| 13/64 | 1/8 | 13/32 | 9/16 | 3/8 | 565 | 1/2 | 3/32 | 3/4 | 1 | 9/32 | 50-6-75 | |
| 7/32 | 3/64 | 5/16 | 1/2 | 19/64 | 1286 | 1/2 | 1/8 | 3/4 | 1 | 1/2 | 653 | |
| 7/32 | 3/64 | 7/16 | 5/8 | 11/64 | 1355 | 1/2 | 1/8 | 13/16 | 1 1/16 | 3/8 | 2861 | |
| 7/32 | 1/16 | 5/16 | 7/16 | 3/16 | 1411 | 1/2 | 3/16 | 13/16 | 1 1/16 | 7/16 | 2761 | |
| 7/32 | 1/4 | 5/8 | 7/8 | 25/32 | 1303 | 1/2 | 1/4 | 13/16 | 1 1/16 | 1/2 | 2561 | |
| 15/64 | 3/16 | 3/8 | 5/8 | 3/8 | 1840 | 1/2 | 3/8 | 3/4 | 1 | 5/8 | 807 | |
| 15/64 | 5/16 | 15/32 | * | 3/4 | 614 | 9/16 | 1/16 | 3/4 | 7/8 | 15/64 | 1720 | |
| 1/4 | 1/32 | 7/16 | 9/16 | 5/16 | 25-2-44 | 9/16 | 1/16 | 13/16 | 1 1/16 | 5/16 | 2295 | |
| 1/4 | 1/32 | 11/32 | 1/2 | 5/32 | 25-5-34 | 9/16 | 1/16 | 3/4 | 1 | 5/16 | 56-4-75 | |
| 1/4 | 3/64 | 3/8 | 9/16 | 19/64 | 25-3-38 | 9/16 | 3/16 | 13/16 | 1 1/16 | 7/16 | 2763 | |
| 1/4 | 1/16 | 5/16 | * | 1/4 | 770 | 9/16 | 3/16 | 7/8 | 1 1/16 | 7/16 | 2512 | |
| 1/4 | 1/16 | 11/32 | 19/32 | 9/32 | 2610 | 9/16 | 1/4 | 13/16 | 1 1/16 | 1/2 | 2563 | |
| 1/4 | 1/16 | 3/8 | 1/2 | 7/32 | 2902 | 9/16 | 3/8 | 7/8 | 1 1/16 | 5/8 | 2513 | |
| 1/4 | 1/16 | 7/16 | 5/8 | 3/16 | 97 | 9/16 | 1 | 13/16 | 1 1/8 | 1 1/4 | 2406 | |
| 1/4 | 1/16 | 9/16 | 3/4 | 11/64 | 1086 | 19/32 | 7/64 | 47/64 | 15/16 | 19/64 | 1177 | |
| 1/4 | 1/16 | 55/64 | 1 3/64 | 11/16 | 5436 | 5/8 | 1/16 | 7/8 | 1 1/8 | 5/16 | 2285 | |
| 1/4 | 1/16 | 1 | 1 1/4 | 1/4 | 2298 | 5/8 | 1/16 | 1 1/4 | 1 1/2 | 1/4 | 2296 | |
| 1/4 | 1/16 | 11/32 | 1/2 | 3/16 | 25-4-34 | 5/8 | 1/16 | 7/8 | 1 1/8 | 5/16 | 63-4-88 | |
| 1/4 | 1/16 | 3/8 | 1/2 | 3/16 | 25-4-38 | 5/8 | 3/32 | 1 3/8 | * | 1/4 | 1128A | |
| 1/4 | 1/16 | 3/8 | 5/8 | 11/32 | 25-4-38B | 5/8 | 1/8 | 7/8 | 1 1/8 | 3/8 | 2864 | |
| 1/4 | 3/32 | 3/8 | 1/2 | 1/4 | 2901 | 5/8 | 1/8 | 7/8 | 1 1/8 | 3/8 | 63-8-88 | |
| 1/4 | 3/32 | 7/16 | 5/8 | 3/8 | 680 | 5/8 | 3/16 | 7/8 | 1 1/8 | 7/16 | 2764 | |
| 1/4 | 3/32 | 15/32 | 49/64 | 19/64 | 1784 | 5/8 | 1/4 | 7/8 | 1 1/8 | 1/2 | 2564 | |
| 1/4 | 1/8 | 3/8 | 1/2 | 1/4 | 2903 | 5/8 | 5/16 | * | * | 11/16 | 2597 | |
| 1/4 | 1/8 | * | * | 5/16 | 911 | 5/8 | 5/16 | 29/32 | 1 1/8 | 5/8 | 494 | |
| 1/4 | 1/8 | 7/16 | 5/8 | 1/4 | 2854 | 5/8 | 5/8 | 7/8 | 1 1/16 | 7/8 | 559 | |
| 1/4 | 3/16 | 7/16 | 5/8 | 5/16 | 2754 | 41/64 | 7/64 | 57/64 | 1 1/16 | 23/64 | 873 | |
| 1/4 | 3/16 | 1/2 | 5/8 | 7/16 | 2335 | 11/16 | 1/16 | 13/16 | * | 15/64 | 95 | |
| 1/4 | 3/16 | 1 | 1 1/4 | 3/8 | 2755 | 11/16 | 1/16 | 1 | 1 5/16 | 3/8 | 2273 | |
| 1/4 | 1/4 | 7/16 | 5/8 | 3/8 | 2554 | 11/16 | 5/64 | 1 | 1 5/16 | 3/8 | 69-5-100 | |
| 1/4 | 1/4 | 15/32 | 5/8 | 1/2 | 696 | 11/16 | 1/8 | 1 | 1 5/16 | 7/16 | 2866 | |
| 1/4 | 1/4 | 1 | 1 1/4 | 7/16 | 2555 | 11/16 | 3/16 | 1 | 1 5/16 | 1/2 | 2766 | |
| 17/64 | 1/8 | 13/32 | 5/8 | 3/8 | 27-8-41 | 11/16 | 1/4 | 1 | 1 5/16 | 9/16 | 2566 | |
| 9/32 | 1/16 | 3/8 | 9/16 | 1/4 | 763 | 23/32 | 3/32 | 1 1/16 | 1 9/32 | 3/8 | 72-6-106 | |
| 9/32 | 1/16 | 3/8 | 19/32 | 13/64 | 28-4-38 | 3/4 | 1/16 | 15/16 | 1 1/8 | 1/4 | 2196 | |
| 9/32 | 1/16 | 3/8 | 9/16 | 1/4 | 28-4-38B | 3/4 | 1/16 | 1 1/16 | 1 3/8 | 3/8 | 804 | |
| 9/32 | 1/16 | 7/16 | 5/8 | 1/4 | 28-4-44 | 3/4 | 1/16 | 1 1/4 | 1 5/8 | 1/4 | 2274 | |
| 9/32 | 3/32 | 7/8 | 1 1/8 | 11/32 | 28-6-88 | 3/4 | 1/16 | 1 7/16 | 1 13/16 | 3/8 | 2275 | |
| 9/32 | 5/32 | 3/8 | 5/8 | 11/32 | 28-10-38 | 3/4 | 1/16 | 1 3/32 | 1 5/8 | 5/16 | 75-4-109 | |
| 9/32 | 1/4 | 15/32 | 11/16 | 7/16 | 190 | 3/4 | 3/32 | 1 1/8 | 1 1/2 | 5/16 | 75-6-113 | |
| 5/16 | 1/32 | 13/16 | * | 1/4 | 231 | 3/4 | 1/8 | 1 1/16 | 1 3/8 | 7/16 | 2867 | |
| 5/16 | 1/16 | 7/16 | 9/16 | 3/16 | 263 | 3/4 | 3/16 | 1 1/16 | 1 3/8 | 1/2 | 2767 | |
| 5/16 | 1/16 | 7/16 | 5/8 | 9/32 | 505 | 3/4 | 1/4 | 1 1/16 | 1 3/8 | 9/16 | 2567 | |
| 5/16 | 1/16 | 15/32 | 45/64 | 1/2 | 2102 | 3/4 | 1/4 | 1 1/4 | 1 5/8 | 7/16 | 2568 | |
| 5/16 | 1/16 | 9/16 | 13/16 | 5/16 | 2113 | 13/16 | 9/16 | 15/16 | 1 1/4 | 7/8 | 5632 | |
| 5/16 | 1/16 | 3/4 | 1 | 5/16 | 2280 | 7/8 | 1/16 | 1 3/16 | * | 9/32 | 824 | |
| 5/16 | 1/16 | 1/2 | 5/8 | 1/4 | 31-4-50 | 7/8 | 1/16 | 1 1/4 | 1 5/8 | 7/16 | 2276 | |
| 5/16 | 3/32 | 7/16 | 5/8 | 5/16 | 2538 | 7/8 | 1/16 | 1 5/8 | 2 | 7/16 | 2300 | |
| 5/16 | 3/32 | 15/32 | 3/4 | 11/32 | 2214 | 7/8 | 1/16 | 1 1/4 | 1 5/8 | 7/16 | 88-4-125 | |
| 5/16 | 1/8 | 9/16 | 13/16 | 3/8 | 2856 | 7/8 | 5/64 | 1 3/16 | 1 3/8 | 15/32 | 1626 | |
| 5/16 | 1/8 | 3/4 | 1 | 3/8 | 2857 | 7/8 | 1/8 | 1 1/4 | 1 5/8 | 1/2 | 2870 | |
| 5/16 | 1/8 | 3/4 | 1 | 1/2 | 167 | 7/8 | 9/64 | 1 3/16 | 1 3/8 | 15/32 | 1626A | |
| 5/16 | 1/8 | 1/2 | 3/4 | 3/8 | 31-8-50 | 7/8 | 3/16 | 1 1/4 | 1 5/8 | 9/16 | 2770 | |
| 5/16 | 3/16 | 7/16 | * | 1/2 | 1896 | 7/8 | 3/16 | 1 15/64 | 1 9/16 | 3/4 | 2595 | |
| 5/16 | 3/16 | 7/16 | * | 11/16 | 2215 | 7/8 | 1/4 | 1 1/4 | 1 5/8 | 5/8 | 2570 | |
| 5/16 | 3/16 | 9/16 | 13/16 | 3/8 | 705 | 1 | 1/16 | 1 7/8 | 2 1/4 | 7/16 | 2301 | |
| 5/16 | 3/16 | 9/16 | 13/16 | 7/16 | 2756 | 1 | 1/16 | 1 3/8 | 1 3/4 | 7/16 | 2277 | |
| 5/16 | 3/16 | 3/4 | 1 | 7/16 | 2757 | 1 | 3/32 | 1 3/8 | 1 3/4 | 3/8 | 100-6-138 | |
| 5/16 | 1/4 | 9/16 | 13/16 | 1/2 | 316 | 1 | 7/64 | 1 3/8 | 1 3/4 | 13/32 | 100-7-138 | |
| 5/16 | 1/4 | 3/4 | 1 | 1/2 | 2556 | 1 | 1/8 | 1 3/8 | 1 3/4 | 1/2 | 2872 | |
| 5/16 | 1/4 | 1/2 | 11/16 | 7/16 | 31-16-50 | 1 | 3/16 | 1 3/8 | 1 3/4 | 9/16 | 2772 | |
| 5/16 | 3/8 | 3/8 | 9/16 | 1/2 | 2557 | 1 | 1/4 | 1 1/4 | 1 1/2 | 1/2 | 2035 | |
| 11/32 | 1/16 | 17/32 | 25/32 | 1/4 | 2004 | 1 | 1/4 | 1 3/8 | 1 3/4 | 5/8 | 2572 | |
| 23/64 | 1/16 | 1/2 | 5/8 | 1/4 | 36-4-50 | 1 1/64 | 1/8 | 1 17/64 | 1 33/64 | 3/8 | 1919 | |
| 1 1/8 | 1/16 | 1 1/2 | 1 7/8 | 3/8 | 2092 | |||||||
| 1 1/8 | 3/32 | 1 3/8 | * | 1/4 | 1128S | |||||||
| 1 1/4 | 1/16 | 1 1/2 | 1 7/8 | 11/32 | 125-4-150 | |||||||
| 1 1/4 | 3/32 | 1 1/2 | 1 7/8 | 3/8 | 125-6-150 | |||||||
| 1 1/4 | 3/32 | 1 3/4 | 2 1/8 | 3/8 | 125-6-175 | |||||||
| 1 5/16 | 1/16 | 1 5/8 | 2 | 3/8 | 2803 | |||||||
| 1 5/16 | 1/8 | 1 5/8 | 2 | 7/16 | 2802 | |||||||
| 1 1/2 | 1/16 | 1 3/4 | 2 1/8 | 7/16 | 2278 | |||||||
| 1 1/2 | 3/32 | 2 | 2 3/8 | 3/8 | 150-6-200 | |||||||
| 1 1/2 | 1/8 | 1 3/4 | 2 1/8 | 1/2 | 2875 | |||||||
| 1 1/2 | 3/16 | 1 3/4 | 2 1/8 | 9/16 | 2775 | |||||||
| 1 1/2 | 1/4 | 1 3/4 | 2 | 1/2 | 2034 | |||||||
| 1 1/2 | 1/4 | 1 3/4 | 2 1/8 | 5/8 | 2575 | |||||||
| 1 5/8 | 1/16 | 1 11/16 | 1 7/8 | 3/8 | 1139 | |||||||
| 2 | 1/32 | 2 1/2 | 3 | 9/32 | 561 | |||||||
| 2 1/8 | 1/16 | 2 1/2 | 2 7/8 | 7/16 | 2805 | |||||||
| 2 1/8 | 1/8 | 2 1/2 | 2 7/8 | 7/16 | 2804 | |||||||
