The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-01-008-4807, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5977-01-008-4807 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Inside Length | 1.218 INCHES NOMINAL IN |
| Overall Diameter | 0.687 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Inside Thickness | 0.311 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 1055A | 3/9 Design control — primary reference Morganite Inc |
| 1055A | 5/9 Secondary reference Midwest Moulding and Mfg |
NSN 5977-01-008-4807 is a Holder,electrical Contact Brush, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-022-8005, 6680-01-416-7911. Verify interchangeability with system specifications before substitution.
Key specifications for 5977-01-008-4807: Inside Length: 1.218 INCHES NOMINAL IN; Overall Diameter: 0.687 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN; Style Designator: ROUND; Overall Length: 1.312 INCHES NOMINAL IN. 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.