The O-Ring, cataloged under National Stock Number 5331-00-078-0303, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Leslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795) |
| Parameter | Value |
|---|---|
| NSN | 5331-00-078-0303 |
| Primary Part Number | N4235293 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls 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 |
|---|---|
| 42352 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| N4235293 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| A4235293 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-078-0303 is a O-Ring, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-078-0303 has 2 manufacturer part numbers on file: 42352 (Leslie Controls, Inc. Dba Leslie Controls Inc), N4235293 (Leslie Controls, Inc. Dba Leslie Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-951-9259, 6680-01-149-5765. Verify interchangeability with system specifications before substitution.
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.