# NSN 4730-00-555-3759: Thread Piece, Union

NSN 4730-00-555-3759 (also written 4730005553759; NIIN 00-555-3759) is a thread piece, union in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 14 manufacturer part numbers from 13 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4730-00-555-3759 (4730005553759)
- NIIN: 00-555-3759 (005553759)
- Item name: THREAD PIECE,UNION
- 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 2026-10-28)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ALME | MATERIAL HARDNESS RATING | ROCKWELL B MINIMUM 92.0 AND ROCKWELL B MAXIMUM 98.0 |
| CGNF | UNION END SCREW THREAD SERIES DESIGNATOR | UN |
| AJYP | SCREW THREAD SERIES DESIGNATOR | NPSM |
| CDPG | WORKING PRESSURE AND SERVICE TYPE | POUNDS PER SQUARE INCH (PSI) NOMINAL WATER 4000.0 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 2.625 |
| MATT | MATERIAL | STEEL COMP 4130 |
| ABUJ | THREAD SIZE | 2-11-1/2 |
| BBMM | SCREW THREAD LOCATION | EXTERNAL |
| BYJF | SEAT TYPE | STRAIGHT FACE |
| AWZY | END CONNECTION TYPE | THREADED |
| CGNG | UNION END THREAD DIRECTION | RIGHT-HAND |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CGND | UNION END THREAD SIZE | 3-3/4IN-R |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| A316215-8 | 0JC12 | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 17661 | HAMILL MANUFACTURING COMPANY DBA HAMILL MANUFACTURING CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 1V517 | DUHADAWAY TOOL & DIE SHOP INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 30828 | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 3BZG7 | NUFLO, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 58078 | AIRTRONICS, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 58974 | PENN STATE TOOL & DIE CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 5S946 | PRE-MACH INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 6W889 | AMMCON CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 9G619 | HONEMATIC MACHINE CORPORATION DBA PCX AEROSYSTEMS - BOYLSTON DIV PCX AEROSYSTEMS - BOYLSTON | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A316215-8 | 9U245 | MASTER RESEARCH & MANUFACTURING, INC. DBA MASTER RESEARCH & MANUFACTURING INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A410564-8 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A613215-8 | 2M490 | NASSAU TOOL WORKS, INC | [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=4730005553759&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730005553759
- 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/4730-00-555-3759/
JSON: https://nsnexplorer.com/api/nsn/4730-00-555-3759.json