The O-Ring, cataloged under National Stock Number 5331-01-285-0478, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cincinnati Gearing Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Cincinnati Gearing Systems Inc (CAGE 3BNF6) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-285-0478 |
| Primary Part Number | 90-8700-13920 ITEM 3 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cincinnati Gearing Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 90-8700-13920 ITEM 3 PRIMARY | Cincinnati Gearing Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 90-8700-13920 ITEM 3 | 3/9 Design control — primary reference The Cincinnati Gear Company Dba Power Transmission Systems |
NSN 5331-01-285-0478 is a O-Ring, manufactured by Cincinnati Gearing Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-285-0478 has 1 manufacturer part number on file: 90-8700-13920 ITEM 3 (Cincinnati Gearing Systems Inc).
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.