The O-Ring, cataloged under National Stock Number 5331-01-018-0863, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-018-0863 |
| Primary Part Number | 2890973-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Cross-Sectional Height | 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.232 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 2890973-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 237E040 | 5/1 Secondary reference U.S. Government activity |
NSN 5331-01-018-0863 is a O-Ring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-018-0863 has 1 manufacturer part number on file: 2890973-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2890973-1: Cross-Sectional Height: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN; Center Hole Diameter: 0.232 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 3 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.