# NSN 4730-01-218-4102: Coupling, Tube

NSN 4730-01-218-4102 (also written 4730012184102; NIIN 01-218-4102) is a coupling, tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 7 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4730-01-218-4102 (4730012184102)
- NIIN: 01-218-4102 (012184102)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | SECOND END UNTHREADED EXTERNAL TUBE |
| AWLS | CONNECTION TYPE | FIRST END UNTHREADED INTERNAL TUBE |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 4.250 |
| FEAT | SPECIAL FEATURES | U/O ENGINE DRAIN OF F16 ACFT;BELLOWS SECTION;1.40 IN. ID;2ND END MAKE FROM AEROQUIP 24538-150 OR EQUIV |
| MATT | MATERIAL | OVERALL STEEL COMP 321 OR STEEL COMP 347 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5510 OR ASSN STD SINGLE MATERIAL RESPONSE A-S5512 |
| SFTT | SURFACE TREATMENT | OVERALL PASSIVATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 16VP128-1 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 35050A001 | 07582 | TECHNETICS GROUP DAYTONA, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4730PL0743933 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4730PL1758298 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4730PL1785896 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 83726 | 07649 | SENIOR OPERATIONS LLC DBA METAL BELLOWS DIV METAL BELLOWS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 83726 | 16519 | SENIOR FLEXONICS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-21 | [SPE7M326P1666](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730012184102) | COUPLING, TUBE | DUTCH VALLEY SUPPLY CO. | $33,488.14 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730012184102&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730012184102
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4730-01-218-4102/
JSON: https://nsnexplorer.com/api/nsn/4730-01-218-4102.json