The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-241-2964, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-241-2964 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| FSC Application Data | AUXILIARY INTERPHONE EQUIPMENT |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Diameter | 2.750 INCHES NOMINAL IN |
| Mounting Configuration | SIX 0.159 IN. DIA COUNTERSUNK MTG HOLES SPACED 60 DEG APART ON 3.687 IN. DIA CIRCLE IN |
| Width | 0.128 INCHES NOMINAL IN |
| Special Markings | GND,PHONE,MIC,CONT,GND,PHONE,CONT 1/4MARKGRING,COLLECTOR 175656 STAMPED ON CASE |
| Contact Ring Quantity | 5 |
| 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 |
|---|---|
| SCD16466 | 3/2 Design control — primary reference U.S. Government activity |
| TP152 | 5/9 Secondary reference Telectro Systems Corp |
| CA143D16466 | 5/9 Secondary reference Noseco Inc |
| CA143D16466 | 5/9 Secondary reference U.S. Government activity |
NSN 5977-00-241-2964 is a Ring Assembly,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-241-2964: Overall Height: 0.666 INCHES NOMINAL IN; FSC Application Data: AUXILIARY INTERPHONE EQUIPMENT; Overall Diameter: 4.000 INCHES NOMINAL IN; Diameter: 2.750 INCHES NOMINAL IN. 7 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.