The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-878-8409, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-878-8409 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Brush Quantity | 20 |
| FSC Application Data | GYROSCOPE RATE |
| Brush Holder Quantity | 1 |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Diameter | 0.128 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 20 |
| Mounting Configuration | THREE 0.070 IN. DIA MOUNTING HOLES 0.375 IN. RADIUS SPACED 120 DEG APART IN |
| Width | 0.016 INCHES NOMINAL IN |
| Contact Ring Quantity | 20 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6319K70P001 | 7/2 Vendor item drawing reference U.S. Government activity |
| 6319K70P001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5977-00-878-8409 is a Ring Assembly,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-878-8409: Brush Quantity: 20; FSC Application Data: GYROSCOPE RATE; Brush Holder Quantity: 1; Overall Diameter: 0.875 INCHES NOMINAL IN. 9 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 5977-00-878-8409 has DEMIL Code D. 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.