AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seal Plain Encased |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5330 Packing and Gasket Materials |
| National Item Identification Number (NIIN) | 01-509-1521 (015091521) |
| NCB Code | USA (01) |
| Manufacturer | Boss Seals Llc, Uwd Mfg Inc, Stemco Inc, Crane Carrier Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABVM | ACCOMMODATED SHAFT DIAMETER | 4.375 INCHES NOMINAL |
| ADUC | SEAL WIDTH | 1.000 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | 2320-01-452-5579;TRUCK TRACTOR |
| BHHL | CASE STYLE | SQUARE |
| CPCW | HOUSING BORE DIAMETER | 5.905 INCHES NOMINAL |
| CTQC | SEALING ELEMENT STYLE | ANGULAR |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL;OIL-STEMCO SS4 FOR EFA-20/FL-941 |
| MATT | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT |
| MATT | MATERIAL | STEEL CORROSION RESISTING CASE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SPRING |
| ABVM | ACCOMMODATED SHAFT DIAMETER | 4.375 INCHES NOMINAL |
| ADUC | SEAL WIDTH | 1.000 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | 2320-01-452-5579;TRUCK TRACTOR |
| BHHL | CASE STYLE | SQUARE |
| CPCW | HOUSING BORE DIAMETER | 5.905 INCHES NOMINAL |
| CTQC | SEALING ELEMENT STYLE | ANGULAR |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL;OIL-STEMCO SS4 FOR EFA-20/FL-941 |
| MATT | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT |
| MATT | MATERIAL | STEEL CORROSION RESISTING CASE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SPRING |
| Relevant Components for NSN - 5330-01-509-1521, 5330015091521 | ||||
| 5365-01-101-3819 (5365011013819) | 5305-01-006-9246 (5305010069246) | 5310-00-639-2818 (5310006392818) | 5310-01-332-9051 (5310013329051) | |
| 5330-01-399-2381 (5330013992381) | 5340-01-496-5144 (5340014965144) | 5342-00-326-6390 (5342003266390) | 5305-01-361-1154 (5305013611154) | |
| 5305-01-516-4729 (5305015164729) | 5330-15-007-8953 (5330150078953) | 5340-01-078-1350 (5340010781350) | 5310-01-471-5429 (5310014715429) | |
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