The O-Ring, cataloged under National Stock Number 5331-01-388-5635, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corp Filtration Group Commercial Filters Div. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-388-5635 |
| Primary Part Number | 4150-5193 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corp Filtration Group Commercial Filters Div |
| Status | ACTIVE |
| Cross-Sectional Height | 0.210 INCHES NOMINAL IN |
| Center Hole Diameter | 9.432 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 |
|---|---|
| 4150-5193 PRIMARY | Parker Hannifin Corp Filtration Group Commercial Filters Div (USA) |
| 31544-4CSF7-1-1FITEM12 | Parker Hannifin Corp Filtration Group Commercial Filters Div (USA) |
| Reference | Meaning |
|---|---|
| 30628-4CSF7-1-1.5FITEM1 | 5/9 Secondary reference Parker Hannifin Corp Filtration Group Commercial Filters Div |
NSN 5331-01-388-5635 is a O-Ring, manufactured by Parker Hannifin Corp Filtration Group Commercial Filters Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-388-5635 has 2 manufacturer part numbers on file: 4150-5193 (Parker Hannifin Corp Filtration Group Commercial Filters Div), 31544-4CSF7-1-1FITEM12 (Parker Hannifin Corp Filtration Group Commercial Filters Div).
Key specifications for 4150-5193: Cross-Sectional Height: 0.210 INCHES NOMINAL IN; Center Hole Diameter: 9.432 INCHES NOMINAL 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.