The O-Ring, cataloged under National Stock Number 5331-01-253-5497, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ciba Corning Diagnostics Corp a Joint Venture. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-253-5497 |
| Primary Part Number | 823-286-027 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ciba Corning Diagnostics Corp a Joint Venture |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Color | BLACK |
| Center Hole Diameter | 2.239 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 823-286-027 PRIMARY | Ciba Corning Diagnostics Corp a Joint Venture (USA) |
NSN 5331-01-253-5497 is a O-Ring, manufactured by Ciba Corning Diagnostics Corp a Joint Venture, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-253-5497 has 1 manufacturer part number on file: 823-286-027 (Ciba Corning Diagnostics Corp a Joint Venture).
Key specifications for 823-286-027: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Color: BLACK; Center Hole Diameter: 2.239 INCHES NOMINAL IN; End Item Identification: 6630-01-137-8460. 4 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.