The O-Ring, cataloged under National Stock Number 5331-01-561-0867, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-561-0867 |
| Primary Part Number | AS568A-040 BUNA-N |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 3.000 INCHES NOMINAL IN |
| Center Hole Diameter | 2.875 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 |
|---|---|
| AS568A-040 BUNA-N PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS568A-040 BUNA-N | 3/9 Design control — primary reference U.S. Government activity |
| AS568A-040 | 5/9 Secondary reference Marco Rubber and Plastics |
NSN 5331-01-561-0867 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-561-0867 has 1 manufacturer part number on file: AS568A-040 BUNA-N (Sae International Dba Sae International).
Key specifications for AS568A-040 BUNA-N: Cross-Sectional Height: 3.000 INCHES NOMINAL IN; Center Hole Diameter: 2.875 INCHES NOMINAL IN; End Item Identification: 8196914(53711) GEAR FRAME SHAFT ASSY; 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.