AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Retainer Seal |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5330 Packing and Gasket Materials |
| National Item Identification Number (NIIN) | 00-477-1990 (004771990) |
| NCB Code | USA (00) |
| Manufacturer | National Steel And Shipbuilding |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 330-521-23-26 | national steel and shipbuilding | retainer seal | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKG | BOLT CIRCLE DIAMETER | 5.250 INCHES NOMINAL |
| ABKU | FLANGE THICKNESS | 0.500 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 0.875 INCHES NOMINAL |
| ABVL | APERTURE DIAMETER | 2.562 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 4.092 INCHES MINIMUM AND 4.094 INCHES MAXIMUM |
| AECS | BOLT HOLE QUANTITY | 6 |
| AHNX | BOLT HOLE DIAMETER | 0.406 INCHES NOMINAL |
| APTE | MOUNTING FLANGE DIAMETER | 6.375 INCHES NOMINAL |
| BNTY | SEAL SEAT DIAMETER | 3.313 INCHES NOMINAL |
| BNTZ | SEAL SEAT DEPTH | 0.688 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | SEAL SEAT DIA CHAMFER 45 DEG BY 0.250 IN. |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | FLANGED |
| Relevant Components for NSN - 5330-00-477-1990, 5330004771990 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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