# NSN 4730-00-541-8821: Coupling Half, Self-Sealing

NSN 4730-00-541-8821 (also written 4730005418821; NIIN 00-541-8821) is a coupling half, self-sealing in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4730-00-541-8821 (4730005418821)
- NIIN: 00-541-8821 (005418821)
- Item name: COUPLING HALF,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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AHNC | CONNECTION STYLE | — |
| AAJD | THREAD CLASS | 3A |
| MATT | MATERIAL | BODY STEEL |
| MEDA | MEDIA FOR WHICH DESIGNED | FIRST RESPONSE AIR |
| MEDA | MEDIA FOR WHICH DESIGNED | SECOND RESPONSE GAS |
| FEAT | SPECIAL FEATURES | BULKHEAD THREADS ON FLUID CONNECTION |
| AGAV | END ITEM IDENTIFICATION | 05F AIRCRAFT, STRATOLIFTER C-135 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 2.720 |
| CQJX | NOMINAL THREAD SIZE | ALL ENDS INCHES 0.750 |
| AWLS | CONNECTION TYPE | FIRST FLUID END CONNECTION THREADED EXTERNAL TUBE |
| SFTT | SURFACE TREATMENT | BODY PAINT |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS UNF |
| CQRB | SEAT ANGLE | LOCATION NOT OTHERWISE SPECIFIED DEGREES 37.0 |
| CBBL | FEATURES PROVIDED | SELF-SEALING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 150S4-8 | 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 |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE7MX20D0003/SPE7MX27F0558](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730005418821) | COUPLING HALF, SELF-SEALING | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION | $4,361.10 |
| 2026-08-19 | [SPE7MX20D0003/SPE7MX26F008C](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730005418821) | COUPLING HALF, SELF-SEALING | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION | $9,885.16 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730005418821&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730005418821
- 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/4730-00-541-8821/
JSON: https://nsnexplorer.com/api/nsn/4730-00-541-8821.json