# NSN 5977-00-707-9749: Holder, Electrical Contact Ring

NSN 5977-00-707-9749 (also written 5977007079749; NIIN 00-707-9749) is a holder, electrical contact ring in Federal Supply Class 5977, Electrical Contact Brushes and Electrodes. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5977-00-707-9749 (5977007079749)
- NIIN: 00-707-9749 (007079749)
- Item name: HOLDER,ELECTRICAL CONTACT RING
- 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 |
| --- | --- | --- |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 5.815 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 2.250 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 525805 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 541086 | 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 |
| --- | --- | --- | --- | --- |
| 2026-10-06 | [SPE4A125G0027/SPE4A527F0043](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5977007079749) | HOLDER, ELECTRICAL C | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $11,481.99 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5977007079749&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5977007079749
- 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/5977-00-707-9749/
JSON: https://nsnexplorer.com/api/nsn/5977-00-707-9749.json