The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-191-6778, 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 General Electric Co Speed Variator Products Operation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5977-01-191-6778 |
| Primary Part Number | 34A520111-G01 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | General Electric Co Speed Variator Products Operation |
| Status | ACTIVE |
| Overall Diameter | 11.100 INCHES NOMINAL IN |
| Contact Ring Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 34A520111-G01 | Argo Turboserve Corporation Div Argo Turboserve Corp. (USA) |
| 34A520111-G01 PRIMARY | General Electric Co Speed Variator Products Operation (USA) |
| Reference | Meaning |
|---|---|
| 34A520111-G01 | 5/9 Secondary reference Ametek Advanced Industries, Inc. |
NSN 5977-01-191-6778 is a Ring Assembly,electrical Contact, manufactured by General Electric Co Speed Variator Products Operation, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-191-6778 has 2 manufacturer part numbers on file: 34A520111-G01 (Argo Turboserve Corporation Div Argo Turboserve Corp.), 34A520111-G01 (General Electric Co Speed Variator Products Operation).
Key specifications for 34A520111-G01: Overall Height: 4.120 INCHES NOMINAL IN; Overall Diameter: 11.100 INCHES NOMINAL IN; Contact Ring Quantity: 1. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5977-01-191-6778 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.