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) | 00-825-2087 (008252087) |
| NCB Code | USA (00) |
| Manufacturer | Military Standards Corp, Society Of Automotive Engineers Inc, Sae International, Eaton Aeroquip Inc, Eaton Aerospace Ltd |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS21921-3S | military standards corp | nut tube coupling | RFQ |
| AS21921-3R | society of automotive engineers inc | nut tube coupling | RFQ |
| MS21921-3R | society of automotive engineers inc | nut tube coupling | RFQ |
| MS21921-3R | sae international | nut tube coupling | RFQ |
| MS21921-3S | eaton aeroquip inc | nut tube coupling | RFQ |
| MS21921-3S | eaton aerospace ltd | nut tube coupling | RFQ |
| AS21921 | sae international | nut tube coupling | RFQ |
| AS21921-3S | society of automotive engineers inc | nut tube coupling | RFQ |
| AS21921 | society of automotive engineers inc | nut tube coupling | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B |
| ACTA | NUT STYLE | TUBE COUPLING |
| ADEA | NUT HEIGHT | 0.570 INCHES MINIMUM AND 0.590 INCHES MAXIMUM |
| BSPX | SMALLEST INSIDE DIAMETER | 0.232 INCHES MINIMUM AND 0.237 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNF |
| CQJX | NOMINAL THREAD SIZE | 0.375 INCHES |
| CQRJ | NOMINAL TUBE OUTSIDE DIAMETER | 0.188 INCHES |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| ZZZK | SPECIFICATION/STANDARD DATA | 96906-MS21921 GOVERNMENT STANDARD |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AGAV | END ITEM IDENTIFICATION | AIRCRAFT,F-16 |
| ASDB | WIDTH ACROSS FLATS | 0.438 INCHES NOMINAL |
| BRQL | LENGTH TO SHOULDER | 0.419 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CRRB | SEAT ANGLE | 45.00 DEGREES NOMINAL |
| Relevant Components for NSN - 4730-00-825-2087, 4730008252087 | ||||
| 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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