The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-564-0754, 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 Frontgrade Technologies Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5977-01-564-0754 |
| Primary Part Number | 121090 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Supplementary Features | COMPRISED OF CABLE, BNC CONNECTORS; ITEM ALLOWS TRANSMISSION OF 1553 DATA FROM A ROTATING DEVICE TO A STATIONARY DEVICE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 121090 PRIMARY | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| H375557-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5977-01-564-0754 is a Ring Assembly,electrical Contact, manufactured by Frontgrade Technologies Inc., classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-564-0754 has 1 manufacturer part number on file: 121090 (Frontgrade Technologies Inc.).
Key specifications for 121090: Supplementary Features: COMPRISED OF CABLE, BNC CONNECTORS; ITEM ALLOWS TRANSMISSION OF 1553 DATA FROM A ROTATING DEVICE TO A STATIONARY DEVICE; Special Features: MATERIAL: ALUMINUM; Part Name Assigned by Controlling Agency: RING,ELECTRICAL CONTACT-STRIP;(INAVY)SLIP RING ASSEMBLY; End Item Identification: MK132MOD GUIDED MISSILE LAUNCHER SHIPBOARD. 1 specification is 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 5977-01-564-0754 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.