# NSN 4730-00-901-6288: Nut, Union

NSN 4730-00-901-6288 (also written 4730009016288; NIIN 00-901-6288) is a nut, union in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 11 manufacturer part numbers from 11 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4730-00-901-6288 (4730009016288)
- NIIN: 00-901-6288 (009016288)
- Item name: NUT,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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MATT | MATERIAL | OVERALL STEEL COMP 4130 |
| CFQB | SHOULDER STEP WIDTH | INCHES MINIMUM 0.250 AND INCHES MAXIMUM 0.266 |
| CFQC | SHOULDER SEAT DIAMETER | INCHES MINIMUM 1.380 AND INCHES MAXIMUM 1.390 |
| BSPX | SMALLEST INSIDE DIAMETER | INCHES MINIMUM 1.003 AND INCHES MAXIMUM 1.006 |
| BZRR | THREAD SERIES | UNF |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-6758 |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 1.625 |
| ADEA | NUT HEIGHT | INCHES NOMINAL 1.063 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ABNK | SHOULDER WIDTH | INCHES NOMINAL 0.313 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| A414240-2 | 0A396 | COMPUTA-BASE-MACHINING, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 0JC12 | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 17661 | HAMILL MANUFACTURING COMPANY DBA HAMILL MANUFACTURING CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 1V517 | DUHADAWAY TOOL & DIE SHOP INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 2M490 | NASSAU TOOL WORKS, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 30828 | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 58078 | AIRTRONICS, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 5S946 | PRE-MACH INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 6W889 | AMMCON CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A414240-2 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-07 | [SPE7M225P1667](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730009016288) | NUT, UNION | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | $5,204.10 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730009016288&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730009016288
- 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/4730-00-901-6288/
JSON: https://nsnexplorer.com/api/nsn/4730-00-901-6288.json