# NSN 4730-01-691-7947: Locknut, Tube Fitting

NSN 4730-01-691-7947 (also written 4730016917947; NIIN 01-691-7947) is a locknut, tube fitting in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4730-01-691-7947 (4730016917947)
- NIIN: 01-691-7947 (016917947)
- Item name: LOCKNUT,TUBE FITTING
- 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 H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | — |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | LOCKNUT,ADJUSTABLE,37 DEGREES FLARED AND FLARELESS TYPE,HYDRAULIC |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| CQRJ | NOMINAL TUBE OUTSIDE DIAMETER | INCHES 0.2500 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.4375 |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| BZRR | THREAD SERIES | UNF |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.5625 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MIL-DTL-18866 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS51888-04 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [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=4730016917947&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730016917947
- 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/4730-01-691-7947/
JSON: https://nsnexplorer.com/api/nsn/4730-01-691-7947.json