The Ring,electrical Contact, cataloged under National Stock Number 5977-01-315-1348, 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 The Boeing Company. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-315-1348 |
| Primary Part Number | 7-311527068-21 |
| Item Name | Ring,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Outside Diameter | 8.235 INCHES MINIMUM AND 8.245 INCHES MAXIMUM IN |
| Inside Diameter | 7.000 INCHES MINIMUM AND 7.003 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 |
| Part Number | Manufacturer |
|---|---|
| 7-311527068-21 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| FL3091-5 | 3/2 Design control — primary reference U.S. Government activity |
| 7-311527068-21 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5977-01-315-1348 is a Ring,electrical Contact, manufactured by The Boeing Company, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-315-1348 has 1 manufacturer part number on file: 7-311527068-21 (The Boeing Company).
Key specifications for 7-311527068-21: Outside Diameter: 8.235 INCHES MINIMUM AND 8.245 INCHES MAXIMUM IN; Inside Diameter: 7.000 INCHES MINIMUM AND 7.003 INCHES MAXIMUM IN; Special Features: FOUR M83723-86R1203N CONNECTORS REQUIRED; USED ON AH64A. 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.