AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Inverted Nut Tube Coupling |
| 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) | 00-142-1581 (001421581) |
| NCB Code | USA (00) |
| Manufacturer | National Aerospace Standards Com, Aerofit Inc, Rubbercraft Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS591-20H | national aerospace standards com | inverted nut tube coupling | RFQ |
| NAS597 | national aerospace standards com | inverted nut tube coupling | RFQ |
| NAS591-20H | aerofit inc | inverted nut tube coupling | RFQ |
| 4177-20H | rubbercraft corporation | inverted nut tube coupling | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| ABHP | OVERALL LENGTH | 0.750 INCHES NOMINAL |
| ABUJ | THREAD SIZE | 1-5/8-12 |
| ACSV | TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED | 1.250 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 33.0 |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UN |
| ASDB | WIDTH ACROSS FLATS | 1.750 INCHES NOMINAL |
| BSPX | SMALLEST INSIDE DIAMETER | 1.260 INCHES NOMINAL |
| MATT | MATERIAL | ALUMINUM ALLOY |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STYL | STYLE DESIGNATOR | INVERTED NUT,TUBE,FLARE |
| Relevant Components for NSN - 4730-00-142-1581, 4730001421581 | ||||
| 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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