The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-906-9110, 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 Emcore Space & Navigation Corporation Div Space & Navigation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5977-00-906-9110 |
| Primary Part Number | 1801938-1 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Emcore Space & Navigation Corporation Div Space & Navigation |
| Status | ACTIVE |
| Diameter | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| Surface Treatment | COPPER RING |
| Width | 0.062 INCHES NOMINAL IN |
| Contact Ring Quantity | 18 |
| 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 |
|---|---|
| 1801938-1 PRIMARY | Emcore Space & Navigation Corporation Div Space & Navigation (USA) |
| Reference | Meaning |
|---|---|
| 1801938-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Guidance Systems Div |
NSN 5977-00-906-9110 is a Ring Assembly,electrical Contact, manufactured by Emcore Space & Navigation Corporation Div Space & Navigation, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-906-9110 has 1 manufacturer part number on file: 1801938-1 (Emcore Space & Navigation Corporation Div Space & Navigation).
Key specifications for 1801938-1: Diameter: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN; Surface Treatment: COPPER RING; Width: 0.062 INCHES NOMINAL IN; Contact Ring Quantity: 18. 4 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.