The Contact Set,collector Ring, cataloged under National Stock Number 5977-01-459-4754, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-459-4754 |
| Item Name | Contact Set,collector Ring |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Contact Type | SPRING LEAF |
| Contact Quantity | 12 |
| 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 |
|---|---|
| 1103182-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5977-01-459-4754 is a Contact Set,collector Ring, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-507-5082. Verify interchangeability with system specifications before substitution.
Key specifications for 5977-01-459-4754: Contact Type: SPRING LEAF; Contact Quantity: 12; Special Features: BRUSH BLOCK IS (T) SHAPED WITH OVERALL DIMENSIONS OF 1.410 IN LONG BY 1.312 IN WIDE BY 0.312 IN HIGH; TWO MOUNTING HOLES 0.147 IN DIA GO THRU TOP OF (T) PARALLEL TO LENGTH 1.000 IN APART; INSULATION RESISTANCE 500.0 MEGOHMS MINIMUM AT 500.0 VDC; BRUSH WIRE FORCE OF 4.0 GRAMS; DEFLECTION 0.057 IN (6 DEG); EFFECTIVE LENGTH 0.535 IN; BRUSHWIRE PROTRUDES FROM BRUSH BLOCK IN TWO DIRECTIONS AT 45 DEG ANGLE; 0.562 IN BETWEEN BRUSHES AT EXIT POINT FROM BLOCK; BRUSHWIRES BEGIN 0.222 IN NOMINAL FROM MOUNTING END AND ARE SPACED 0.100 IN APART (PLUS OR MINUS 0.001 IN) TOLERANCES NON ACCUMULATIVE; 12 LEADWIRES EACH IS 13.000 IN. IN LENGTH, EXIT AT RIGHT ANGLE TO SURFACE OPPOSITE BRUSHES VDC. 2 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.