The Ring,electrical Contact, cataloged under National Stock Number 5977-00-829-6596, 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 Cummins Inc.. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5977-00-829-6596 |
| Primary Part Number | 99017-99 |
| Item Name | Ring,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Outside Diameter | 2.208 INCHES NOMINAL IN |
| Inside Diameter | 1.470 INCHES NOMINAL IN |
| Material | ALUMINUM |
| 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 |
|---|---|
| 99017-99 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 99017-99 | 5/9 Secondary reference Spalla Inc |
| R153037269 | 5/9 Secondary reference Prestolite Electric Inc |
| 37269 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5977-00-829-6596 is a Ring,electrical Contact, manufactured by Cummins Inc., classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-829-6596 has 1 manufacturer part number on file: 99017-99 (Cummins Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 5930-01-010-1152, 4820-01-046-2989, 2840-01-158-5963. Verify interchangeability with system specifications before substitution.
Key specifications for 99017-99: Outside Diameter: 2.208 INCHES NOMINAL IN; Inside Diameter: 1.470 INCHES NOMINAL IN; Special Features: ANODIZED FINISH; 0.085 IN. THK; W/45 DEG ANGLE CHAMFER ON INSIDE EDGE IN; Material: ALUMINUM. 3 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.