| Item Name | Nut Union |
| 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) | 01-121-2750 (011212750) |
| NCB Code | USA (01) |
| Manufacturer | Electric Boat Corporation, Derbyshire Machine And Tool Co |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 2621-713-01 PIECE 20 | electric boat corporation | nut union | RFQ |
| 2621-713-01PC20 | derbyshire machine and tool co | nut union | RFQ |
| 2621-713-01 PC2 | derbyshire machine and tool co | nut union | RFQ |
| 2621-713-01 | electric boat corporation | nut union | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ABNK | SHOULDER WIDTH | 0.300 INCHES NOMINAL |
| ACTA | NUT STYLE | ROUND |
| ACTD | NUT DIAMETER | 3.500 INCHES NOMINAL |
| ADEA | NUT HEIGHT | 1.500 INCHES NOMINAL |
| BSPX | SMALLEST INSIDE DIAMETER | 2.650 INCHES NOMINAL |
| BZRR | THREAD SERIES | UN |
| CFQB | SHOULDER STEP WIDTH | 0.385 INCHES NOMINAL |
| CFQC | SHOULDER SEAT DIAMETER | 2.660 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| CQJX | NOMINAL THREAD SIZE | 3.062 INCHES |
| FEAT | SPECIAL FEATURES | 8 RIBS EQUALLY SPACED ON OUTSIDE DIA |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-C-20159,TYPE I MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 4730-01-121-2750, 4730011212750 | ||||
| 4730-01-436-2114 (4730014362114) | 4710-01-202-7787 (4710012027787) | 4720-01-526-5273 (4720015265273) | 4720-01-408-1219 (4720014081219) | |
| 4730-01-622-4160 (4730016224160) | 4720-01-589-9450 (4720015899450) | 4720-01-201-5242 (4720012015242) | 4730-00-409-1688 (4730004091688) | |
| 4720-01-137-0340 (4720011370340) | 4710-01-512-8267 (4710015128267) | 4720-01-703-1112 (4720017031112) | 4730-01-478-4701 (4730014784701) | |
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