AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | O Ring |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5331 O Ring |
| National Item Identification Number (NIIN) | 00-281-6931 (002816931) |
| NCB Code | USA (00) |
| Manufacturer | Military Specifications, National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| M25988/1-049 | military specifications | o ring | RFQ |
| MIL-R-25988/1 | military specifications | o ring | RFQ |
| MIL-R-25988-1 | national aerospace standards com | o ring | RFQ |
| M25988-1-049 | national aerospace standards com | o ring | RFQ |
| MIL-DTL-25988/1 | military specifications | o ring | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHE | OUTSIDE DIAMETER | 5.129 INCHES NOMINAL |
| ADVN | CROSS-SECTIONAL HEIGHT | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| ADYT | CENTER HOLE DIAMETER | 4.952 INCHES MINIMUM AND 5.026 INCHES MAXIMUM |
| ANYN | ELONGATION PERCENTAGE | 125 MAXIMUM |
| CQFM | HARDNESS RATING | 70.0 SHORE DUROMETER A NOMINAL |
| MATT | MATERIAL | RUBBER FLUOROSILICONE CLASS FQ |
| Relevant Components for NSN - 5331-00-281-6931, 5331002816931 | ||||
| 5355-00-582-7370 (5355005827370) | 5340-01-492-4288 (5340014924288) | 5340-00-523-3711 (5340005233711) | 5330-01-275-9444 (5330012759444) | |
| 5340-01-238-2053 (5340012382053) | 5365-01-693-2245 (5365016932245) | 5331-01-258-8240 (5331012588240) | 5365-01-672-1629 (5365016721629) | |
| 5365-01-432-4280 (5365014324280) | 5365-01-654-1906 (5365016541906) | 5340-01-451-0804 (5340014510804) | 5340-01-489-6012 (5340014896012) | |
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