The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-705-7840, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 — Electrical Contact Brushes and Electrodes (FSG 59) |
| Manufacturers | Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited (CAGE 3AJ77); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 5977-01-705-7840 |
| Primary Part Number | 79500063-0 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 79500063-0 | Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited (CAN) |
| 79500063-0 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| PL 79500063 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 5977-01-705-7840 is a Ring Assembly,electrical Contact, manufactured by Naval Sea Systems Command, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-705-7840 has 2 manufacturer part numbers on file: 79500063-0 (Rolls-Royce Canada Limited Div Rolls-Royce Canada Limited), 79500063-0 (Naval Sea Systems Command).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.