# NSN 4730-01-542-5455: Union, Tube

NSN 4730-01-542-5455 (also written 4730015425455; NIIN 01-542-5455) is an union, tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 7 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4730-01-542-5455 (4730015425455)
- NIIN: 01-542-5455 (015425455)
- Item name: UNION,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 T: handled under qualified products list procedures. (observed 2026-10-15)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED EXTERNAL TUBE |
| CQJX | NOMINAL THREAD SIZE | ALL ENDS INCHES 0.438 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| CQRB | SEAT ANGLE | ALL ENDS DEGREES 12.0 |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | ALL ENDS INCHES 0.250 |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 1.063 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | UNION, FLARELESS TUBE |
| FEAT | SPECIAL FEATURES | MATERIAL CORROSION RESISTANT STEEL (15-5PH) CADMIUM PLATED |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS UNIFIED NATIONAL JOINT FINE (UNJF) |
| ZZZK | SPECIFICATION/STANDARD DATA | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 81343 - AS21902 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| AS18280 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS18280 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS21902 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS21902 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21902V4P | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21902V4P | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SAE-AS18280 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-14 | [SPE4AX25D5000/SPE4A227F0095](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730015425455) | UNION, TUBE | LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS | $701.76 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730015425455&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730015425455
- 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/4730-01-542-5455/
JSON: https://nsnexplorer.com/api/nsn/4730-01-542-5455.json