AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | 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) | 01-087-7557 (010877557) |
| NCB Code | USA (01) |
| Manufacturer | Military Standards Corp, Society Of Automotive Engineers Inc, Sae International |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS21921-8D | military standards corp | nut tube coupling | RFQ |
| AS21921 | society of automotive engineers inc | nut tube coupling | RFQ |
| AS21921 | sae international | nut tube coupling | RFQ |
| MS21921-8D | society of automotive engineers inc | nut tube coupling | RFQ |
| MS21921-8D | sae international | nut tube coupling | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | TUBE COUPLING |
| ADEA | NUT HEIGHT | 0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.871 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| BRQL | LENGTH TO SHOULDER | 0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM |
| BSPX | SMALLEST INSIDE DIAMETER | 0.552 INCHES MINIMUM AND 0.557 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNJF |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQJX | NOMINAL THREAD SIZE | 0.750 INCHES |
| CQRJ | NOMINAL TUBE OUTSIDE DIAMETER | 0.500 INCHES |
| CRRB | SEAT ANGLE | 45.0 DEGREES NOMINAL |
| MATT | MATERIAL | ALUMINUM ALLOY 2014 AND ALUMINUM ALLOY 2024 OVERALL |
| ZZZK | SPECIFICATION/STANDARD DATA | 96906-MS21921 GOVERNMENT STANDARD |
| Relevant Components for NSN - 4730-01-087-7557, 4730010877557 | ||||
| 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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