The O-Ring, cataloged under National Stock Number 5331-00-287-0926, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sunair Incorporated. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-287-0926 |
| Primary Part Number | CP-751-641-919 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sunair Incorporated |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 6.211 INCHES MINIMUM AND 6.257 INCHES MAXIMUM 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 |
|---|---|
| CP-751-641-919 PRIMARY | Sunair Incorporated (USA) |
| Reference | Meaning |
|---|---|
| CP-751-641-919 | 5/9 Secondary reference Sunair Co |
| 2-259N180-7 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-00-287-0926 is a O-Ring, manufactured by Sunair Incorporated, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-287-0926 has 1 manufacturer part number on file: CP-751-641-919 (Sunair Incorporated).
Key specifications for CP-751-641-919: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 6.211 INCHES MINIMUM AND 6.257 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.