The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-593-7217, 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 Danmar Industries, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-593-7217 |
| Primary Part Number | 20055-1 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Danmar Industries, Inc. |
| 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 |
|---|---|
| 20055-1 PRIMARY | Danmar Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| H422649-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5977-01-593-7217 is a Ring Assembly,electrical Contact, manufactured by Danmar Industries, Inc., classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-593-7217 has 1 manufacturer part number on file: 20055-1 (Danmar Industries, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 1560-01-681-1333, 9330-01-696-2749. Verify interchangeability with system specifications before substitution.
Key specifications for 20055-1: Part Name Assigned by Controlling Agency: NMT SLIP RING, SHIP; End Item Identification: AS-4670/WSC-9(V). 0 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.