The O-Ring, cataloged under National Stock Number 5331-01-143-6597, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-143-6597 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 1.191 INCHES NOMINAL IN |
| Center Hole Diameter | 1.041 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| ARP568-023MILP2 3652 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-023V764-90 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| AS3218A | 5/1 Secondary reference Sae International Dba Sae International |
| AS3218A | 5/9 Secondary reference U.S. Government activity |
| ARP568-023MIL-G-23652 TY2 | 5/9 Secondary reference U.S. Government activity |
| 4400573-0230 | 3/2 Design control — primary reference U.S. Government activity |
| 281692-0001 ITEM 65 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-01-143-6597 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-143-6597: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 1.191 INCHES NOMINAL IN; Center Hole Diameter: 1.041 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 4 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.