# NSN 5977-01-428-9209: Ring Assembly, Electrical Contact

NSN 5977-01-428-9209 (also written 5977014289209; NIIN 01-428-9209) is a ring assembly, electrical contact in Federal Supply Class 5977, Electrical Contact Brushes and Electrodes. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 5977-01-428-9209 (5977014289209)
- NIIN: 01-428-9209 (014289209)
- Item name: RING ASSEMBLY,ELECTRICAL CONTACT
- Federal Supply Class: [FSC 5977 Electrical Contact Brushes and Electrodes](https://nsnexplorer.com/fsc/5977/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | FORM,FIT,FUNCTION CRITICAL PER DEEP LOOK AND ENGINEERING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 25857 | 11384 | KOLLMORGEN CORP | [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=5977014289209&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5977014289209
- 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/5977-01-428-9209/
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