# NSN 4730-01-501-0056: Coupling, Tube

NSN 4730-01-501-0056 (also written 4730015010056; NIIN 01-501-0056) is a coupling, tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 4 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4730-01-501-0056 (4730015010056)
- NIIN: 01-501-0056 (015010056)
- Item name: COUPLING,TUBE
- Federal Supply Class: [FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings](https://nsnexplorer.com/fsc/4730/)
- Federal Supply Group: [FSG 47](https://nsnexplorer.com/group/47/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 100.0 |
| AGAV | END ITEM IDENTIFICATION | LOS ANGELES CLASS SSN (688) |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | ALL ENDS UNTHREADED INTERNAL TUBE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 1050.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 2.250 |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | ALL ENDS INCHES 1.500 |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 3.310 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | COUPLING CENTER |
| FEAT | SPECIAL FEATURES | NHA REVERSE OSMOSIS PRESSURE VESSEL; ID BOTH ENDS 1.502-1.503 IN X 1.36 IN DEEP, O-RING GROOVE ID 1.736-1.738 IN, CENTER ID 1.15 X 0.590 IN LONG; 45 DEGREE CHAMFER CUT ON ID OF EA END |
| MATT | MATERIAL | OVERALL COPPER ALLOY 715 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-C-15726 ALY-C71500 FOR--ROD TE--H01 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 531-7016000-22 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7016000 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H655-1511 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H655-1511-22 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730015010056&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730015010056
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4730-01-501-0056/
JSON: https://nsnexplorer.com/api/nsn/4730-01-501-0056.json