The Ring,electrical Contact, cataloged under National Stock Number 5977-00-658-4772, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5977-00-658-4772 |
| Item Name | Ring,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Shape | CYLINDRICAL |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Mounting Configuration | 8 HOLES FOR NO. 10-32 SCREWS EQUALLY SPACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 30128-1036 | C/1 Advisory reference — outside the item-of-supply concept Safran Power Usa Llc |
| 30128-1036 | 3/9 Design control — primary reference Lucas Aerospace Power Equipment Corporation |
NSN 5977-00-658-4772 is a Ring,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-658-4772: Shape: CYLINDRICAL; Overall Length: 4.200 INCHES NOMINAL IN; Outside Diameter: 6.500 INCHES NOMINAL IN; Special Features: MAGNESIUM; ENAMELED FINISH; 1.109 IN. THK IN. 3 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.
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.