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) | 00-555-8012 (005558012) |
| NCB Code | USA (00) |
| Manufacturer | Military Standards Corp, Eaton Aeroquip Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS21921D5 | military standards corp | nut tube coupling | RFQ |
| MS21921-5D | military standards corp | nut tube coupling | RFQ |
| MS21916W4-3 | military standards corp | nut tube coupling | RFQ |
| 2-03004D5 | eaton aeroquip inc | nut tube coupling | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | TUBE COUPLING |
| ADEA | NUT HEIGHT | 0.760 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | USED ON ATTACK HELICOPTER,AH-1S(MC) |
| ASDB | WIDTH ACROSS FLATS | 0.625 INCHES NOMINAL |
| BRQL | LENGTH TO SHOULDER | 0.562 INCHES NOMINAL |
| BSPX | SMALLEST INSIDE DIAMETER | 0.366 INCHES NOMINAL |
| BZRR | THREAD SERIES | UNJF |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES |
| CQRJ | NOMINAL TUBE OUTSIDE DIAMETER | 0.312 INCHES |
| CRRB | SEAT ANGLE | 45.00 DEGREES NOMINAL |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| ZZZK | SPECIFICATION/STANDARD DATA | 96906-MS21921 GOVERNMENT STANDARD |
| Relevant Components for NSN - 4730-00-555-8012, 4730005558012 | ||||
| 4730-01-264-0647 (4730012640647) | 4710-01-087-3570 (4710010873570) | 4730-01-682-8244 (4730016828244) | 4730-01-487-9458 (4730014879458) | |
| 4710-00-243-6475 (4710002436475) | 4710-01-534-2995 (4710015342995) | 4720-01-543-1738 (4720015431738) | 4710-01-354-1183 (4710013541183) | |
| 4730-00-911-7118 (4730009117118) | 4720-00-789-6624 (4720007896624) | 4710-01-217-9553 (4710012179553) | 4720-01-342-8657 (4720013428657) | |
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