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| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| BS1806-268 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-268 | K7766 | BRITISH STANDARDS INSTITUTION |
| GD2073-46 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK)LTD |