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| ASCC17-27C-217 | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| D56518C | K4668 | BRISTOL BABCOCK LTD |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-217 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-217 | K7766 | BRITISH STANDARDS INSTITUTION |
| O-RING | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| O-RING | K7766 | BRITISH STANDARDS INSTITUTION |
| O-RING | U1068 | TRELLEBORG SEALING SOLUTIONS (UK)LTD |
| PP51C22 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK)LTD |
| D56518C | U2661 | BRISTOL BABCOCK LTD |
| O-RING | U2661 | BRISTOL BABCOCK LTD |