# NSN 4730-01-099-8571: Coupling Assembly, Self-Sealing

NSN 4730-01-099-8571 (also written 4730010998571; NIIN 01-099-8571) is a coupling assembly, self-sealing in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4730-01-099-8571 (4730010998571)
- NIIN: 01-099-8571 (010998571)
- Item name: COUPLING ASSEMBLY,SELF-SEALING
- 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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 10.917 |
| ADLK | FIRST LEG LENGTH | INCHES NOMINAL 1.875 |
| ADLL | SECOND LEG LENGTH | INCHES NOMINAL 1.265 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 300.0 |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | FIRST QUICK DISCONNECT END THREADED INTERNAL TUBE |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| CQBB | SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| CQJX | NOMINAL THREAD SIZE | FIRST QUICK DISCONNECT END INCHES 1.312 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 100.0 |
| MATT | MATERIAL | BODY STEEL CORROSION RESISTING |
| MEDA | MEDIA FOR WHICH DESIGNED | SECOND RESPONSE WATER, SALT |
| MEDA | MEDIA FOR WHICH DESIGNED | FIRST RESPONSE STEAM |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | FIRST QUICK DISCONNECT END UNIFIED NATIONAL JOINT (UNJ) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 511234-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AE94061M | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-27 | [SPE7M226P3819](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010998571) | COUPLING ASSEMBLY, S | NORCATEC LLC | $145,485.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730010998571&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010998571
- 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.

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