# NSN 2840-01-420-6141: Ring Assy, Locking

NSN 2840-01-420-6141 (also written 2840014206141; NIIN 01-420-6141) is a ring assy, locking in Federal Supply Class 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 2840-01-420-6141 (2840014206141)
- NIIN: 01-420-6141 (014206141)
- Item name: RING ASSY,LOCKING
- Federal Supply Class: [FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components](https://nsnexplorer.com/fsc/2840/)
- Federal Supply Group: [FSG 28](https://nsnexplorer.com/group/28/)
- Acquisition method suffix code: AMSC B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-15)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES MAXIMUM 1.215 |
| ADAV | OVERALL DIAMETER | INCHES MAXIMUM 0.805 |
| FEAT | SPECIAL FEATURES | RING ASSEMBLY,LOCKING-FUEL NOZZLE;INCLUDES:1 EA LOCKRING, GE P/N 1864M50P02, MOELLER P/N SW31415 & 1 EA SLEEVE, GE P/N 1864M50P03, MOELLER P/N SW31368;MATERIAL SPEC. AMS 5663 |
| MATT | MATERIAL | NICKEL ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1864M50P01 | 07482 | GENERAL ELECTRIC COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SW31416 | 08244 | MOELLER MFG. COMPANY, LLC DIV AIRCRAFT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-14 | [SPE4A726D0370/SPE4A727F0324](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2840014206141) | RING ASSY, LOCKING | MOELLER MFG. COMPANY, LLC DIV AIRCRAFT | $252,702.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2840014206141&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2840014206141
- 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/2840-01-420-6141/
JSON: https://nsnexplorer.com/api/nsn/2840-01-420-6141.json