AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Packing Nut |
| Federal Supply Group (FSG) | Pipe Tubing Hose and Fittings |
| Federal Supply Class (FSC) | 4730 Hose Pipe Tube Lubrication and Railing Fittings |
| National Item Identification Number (NIIN) | 00-821-0189 (008210189) |
| NCB Code | USA (00) |
| Manufacturer | Chicago Pneumatic Tool Company Llc, Globe Aerospace Inc, Military Standards Corp, Society Of Automotive Engineers Inc, Zodiac Intertechnique Eros Oxygen, Collins Engineering Corp, Dana Corp, Eaton Aeroquip Inc, Sae International, Parker Hannifin Corporation, Eaton Aerospace Ltd, Faber Enterprises Inc, Satair Usa Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS21937-4L | chicago pneumatic tool company llc | packing nut | RFQ |
| MS21937-4L | globe aerospace inc | packing nut | RFQ |
| MS21937-4L | military standards corp | packing nut | RFQ |
| AS21937 | society of automotive engineers inc | packing nut | RFQ |
| MS21937-4L | zodiac intertechnique eros oxygen | packing nut | RFQ |
| MS21937W4L | society of automotive engineers inc | packing nut | RFQ |
| MS21937-4L | collins engineering corp | packing nut | RFQ |
| 105-01495 | dana corp | packing nut | RFQ |
| MS21937-4L | eaton aeroquip inc | packing nut | RFQ |
| AS21937 | sae international | packing nut | RFQ |
| MS21937-4L | parker hannifin corporation | packing nut | RFQ |
| MS21937-4L | eaton aerospace ltd | packing nut | RFQ |
| MS21937-4L | sae international | packing nut | RFQ |
| AS18280 | sae international | packing nut | RFQ |
| MS21937W4L | sae international | packing nut | RFQ |
| AS18280 | society of automotive engineers inc | packing nut | RFQ |
| MS21937-4L | faber enterprises inc | packing nut | RFQ |
| MS21937-4L | satair usa inc | packing nut | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AASA | THREAD LENGTH | 0.250 INCHES NOMINAL |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| ABHP | OVERALL LENGTH | 0.406 INCHES NOMINAL |
| ABUJ | THREAD SIZE | 7/16IN-20 |
| ABVA | UNTHREADED PORTION LENGTH | 0.156 INCHES NOMINAL |
| AGRU | LARGEST INSIDE DIAMETER | 0.562 INCHES NOMINAL |
| ASDB | WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL |
| BRQL | LENGTH TO SHOULDER | 0.344 INCHES NOMINAL |
| STYL | STYLE DESIGNATOR | HEXAGON,INTERNAL THREAD,SHOULDERED |
| ZZZK | SPECIFICATION/STANDARD DATA | 81343-SAE AS21937 MANUFACTURERS STANDARD |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNF |
| BBMM | SCREW THREAD LOCATION | INTERNAL |
| CFQG | MAJOR UNTHREADED OUTSIDE DIAMETER | 0.687 INCHES NOMINAL |
| MATT | MATERIAL | ALUMINUM ALLOY 7075 |
| Relevant Components for NSN - 4730-00-821-0189, 4730008210189 | ||||
| 4720-01-543-9256 (4720015439256) | 4710-00-020-8209 (4710000208209) | 4720-00-236-2575 (4720002362575) | 4730-01-600-6309 (4730016006309) | |
| 4720-01-428-9860 (4720014289860) | 4720-01-352-6034 (4720013526034) | 4730-00-554-8091 (4730005548091) | 4710-00-815-6041 (4710008156041) | |
| 4730-01-612-5310 (4730016125310) | 4730-01-199-6545 (4730011996545) | 4730-01-223-0532 (4730012230532) | 4710-00-276-3984 (4710002763984) | |
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