The O-Ring, cataloged under National Stock Number 5331-00-814-5826, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-00-814-5826 |
| Primary Part Number | 18021-00 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.669 INCHES MINIMUM AND 0.679 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| 18021-00 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 2800C13A | 5/9 Secondary reference Avox Systems Inc Dba Avox Systems Inc |
NSN 5331-00-814-5826 is a O-Ring, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-814-5826 has 1 manufacturer part number on file: 18021-00 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for 18021-00: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 0.669 INCHES MINIMUM AND 0.679 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q. 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.