The O-Ring, cataloged under National Stock Number 5331-00-108-9933, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-00-108-9933 |
| Primary Part Number | 2-018E515-80 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 0.864 INCHES MINIMUM AND 0.894 INCHES MAXIMUM IN |
| Hardness Rating | 80.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM |
| 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 |
|---|---|
| PRP568-018 5611-80 | Parco, Llc (USA) |
| 568-018-E17018 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| 018-3238 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| AS568-018 2AA815A13F17EA14 | Sae International Dba Sae International (USA) |
| 2-018E515-80 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| A-018SR721-80 | Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa (MEX) |
| Reference | Meaning |
|---|---|
| 2-018E515-8 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Canada Div Fluid Connectors Canada |
| A-018SR721-80 | 5/2 Secondary reference U.S. Government activity |
| 0537531-018 | 5/2 Secondary reference U.S. Government activity |
| 2-018 E515-80 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 537531-18 | 7/2 Vendor item drawing reference U.S. Government activity |
| 2-018 E515-8 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-018E515-80 | 5/9 Secondary reference Parker Hannifin Canada Div Fluid Connectors Canada |
| SM-C-773504-19 | 5/2 Secondary reference U.S. Government activity |
| AS568-018 2AA815A13F17EA14 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-108-9933 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-108-9933 has 6 manufacturer part numbers on file: PRP568-018 5611-80 (Parco, Llc), 568-018-E17018 (Acushnet Rubber Company, Inc. Dba Precix), 018-3238 (Parker Hannifin Corporation Div O-Ring Division), AS568-018 2AA815A13F17EA14 (Sae International Dba Sae International), 2-018E515-80 (Parker-Hannifin Corp Div O-Ring Division) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 5331-00-689-6456, 5331-01-670-0543. Verify interchangeability with system specifications before substitution.
Key specifications for 2-018E515-80: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.864 INCHES MINIMUM AND 0.894 INCHES MAXIMUM IN; Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN. 5 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.