# NSN 4730-00-394-4728: Packing Nut

NSN 4730-00-394-4728 (also written 4730003944728; NIIN 00-394-4728) is a packing nut 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: 4730-00-394-4728 (4730003944728)
- NIIN: 00-394-4728 (003944728)
- Item name: PACKING NUT
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| BRQL | LENGTH TO SHOULDER | INCHES NOMINAL 0.380 |
| ABUJ | THREAD SIZE | 7/8IN-20 |
| MATT | MATERIAL | STEEL COMP 347 |
| STYL | STYLE DESIGNATOR | — |
| BSPX | SMALLEST INSIDE DIAMETER | INCHES NOMINAL 0.330 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNJEF |
| ALME | MATERIAL HARDNESS RATING | ROCKWELL B MINIMUM 70.0 AND ROCKWELL B MAXIMUM 100.0 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.996 AND INCHES MAXIMUM 1.003 |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.278 |
| AASG | CASEHARDENING INDICATOR | NOT CASE-HARDENED |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 0.480 |
| BBMM | SCREW THREAD LOCATION | INTERNAL |
| AAJD | THREAD CLASS | 3B |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 556032-2 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE4A125G0027/SPE4A527F0320](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730003944728) | PACKING NUT | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $6,950.20 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730003944728&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730003944728
- 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/4730-00-394-4728/
JSON: https://nsnexplorer.com/api/nsn/4730-00-394-4728.json