The Electrode, cataloged under National Stock Number 5977-01-490-5957, 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 Evac North America Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5977-01-490-5957 |
| Primary Part Number | 2502590-020 |
| Item Name | Electrode |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Length | 9.000 INCHES NOMINAL IN |
| Shape | HEXAGONAL |
| Material | STEEL CORE |
| Construction | SOLID |
| 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 |
|---|---|
| 2502590-020 PRIMARY | Evac North America Inc (USA) |
| 2502590-020 | New Era Contract Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| 5700164 REV A IT 2 | 5/1 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 2502590 | D/9 Drawing number reference only Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5700164 | D/9 Drawing number reference only Envirovac Inc Dba Monogram Systems-Rockford Div |
| 2502590-020 | 3/9 Design control — primary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 3RO.67C4 | 5/9 Secondary reference Warrick Controls Inc |
NSN 5977-01-490-5957 is a Electrode, manufactured by Evac North America Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-490-5957 has 2 manufacturer part numbers on file: 2502590-020 (Evac North America Inc), 2502590-020 (New Era Contract Sales Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5977-01-490-6255, 5977-01-490-6260. Verify interchangeability with system specifications before substitution.
Key specifications for 2502590-020: Length: 9.000 INCHES NOMINAL IN; Shape: HEXAGONAL; Material: STEEL CORE; Construction: SOLID. 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.