The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-259-7720, 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 General Motors Llc Dba General Motors Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-259-7720 |
| Primary Part Number | N5391818PC80 |
| Item Name | Ring Assembly,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Overall Diameter | 5.875 INCHES NOMINAL IN |
| Diameter | 5.875 INCHES NOMINAL IN |
| Surface Treatment | COPPER ALLOY RING |
| Mounting Configuration | 3.436 IN. PLUS 0.001 MINUS 0.000 DIA CENTER MTG HOLE FOR PRESS FIT ON ACCOMMODATED SHAFT IN |
| Width | 0.750 INCHES NOMINAL IN |
| Contact Ring Quantity | 2 |
| 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 |
|---|---|
| N5391818PC80 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| N5384350SH1PC90 | 5/9 Secondary reference General Motors Corp |
| N5386161SH2PC95 | 5/9 Secondary reference General Motors Corp |
| N5384350SH2PC15 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| N5391818PC80 | 3/9 Design control — primary reference General Motors Corp |
| N5384350SH2PC90 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| N5387201SH1PC72 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| N5386161SH2PC95 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| 5367254 | 5/9 Secondary reference General Motors Corp |
| N5391818PC80 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| N5384350SH1PC90 | 5/9 Secondary reference General Motors Corp Delco Products Div Machine Control Systems |
| N5384350SH2PC15 | 5/9 Secondary reference General Motors Corp |
| N5384350SH2PC90 | 5/9 Secondary reference General Motors Corp |
| N5387201SH1PC72 | 5/9 Secondary reference General Motors Corp |
NSN 5977-00-259-7720 is a Ring Assembly,electrical Contact, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-259-7720 has 1 manufacturer part number on file: N5391818PC80 (General Motors Llc Dba General Motors Llc).
Key specifications for N5391818PC80: Overall Height: 3.250 INCHES NOMINAL IN; Overall Diameter: 5.875 INCHES NOMINAL IN; Diameter: 5.875 INCHES NOMINAL IN; Surface Treatment: COPPER ALLOY RING. 6 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.