The O-Ring, cataloged under National Stock Number 5331-01-565-8595, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div Sporlan Division. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-565-8595 |
| Primary Part Number | 621-025 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div Sporlan Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Material Document and Classification | NEOPRENE MFR REF SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 1.176 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 621-025 PRIMARY | Parker-Hannifin Corp Div Sporlan Division (USA) |
NSN 5331-01-565-8595 is a O-Ring, manufactured by Parker-Hannifin Corp Div Sporlan Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-565-8595 has 1 manufacturer part number on file: 621-025 (Parker-Hannifin Corp Div Sporlan Division).
Key specifications for 621-025: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Material Document and Classification: NEOPRENE MFR REF SINGLE MATERIAL RESPONSE; Center Hole Diameter: 1.176 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: ORING-ENCLOSING TUBE. 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.