The O-Ring, cataloged under National Stock Number 5331-01-437-8228, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Curtiss-Wright Electro-Mechanical Corporation Div Epd (CAGE 0UBG9) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-437-8228 |
| Primary Part Number | 568226 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 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 |
|---|---|
| 568226 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 568226 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 568226 | 5/9 Secondary reference Toolex, Inc Dba Toolex Inc |
NSN 5331-01-437-8228 is a O-Ring, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-437-8228 has 1 manufacturer part number on file: 568226 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
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.