The O-Ring, cataloged under National Stock Number 5331-01-721-0877, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin (australia) Pty. Limited. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-721-0877 |
| Primary Part Number | 711510-7 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin (australia) Pty. Limited |
| Status | ACTIVE |
| Center Hole Diameter | 69.44 MILLIMETERS NOMINAL MM |
| Cross-Sectional Diameter | 3.53 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 711510-7 | Parker Hannifin (australia) Pty. Limited (AUS) |
| N0552 2-232 | Parker Hannifin (australia) Pty. Limited (AUS) |
| Reference | Meaning |
|---|---|
| 711510-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-721-0877 is a O-Ring, manufactured by Parker Hannifin (australia) Pty. Limited, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-721-0877 has 2 manufacturer part numbers on file: 711510-7 (Parker Hannifin (australia) Pty. Limited), N0552 2-232 (Parker Hannifin (australia) Pty. Limited).
Key specifications for 711510-7: Special Features: FLANGE DASH SIZE: -40. FLANGE SIZE: 2.5 INCHES. FOR USE WITH PETROLEUM BASE FLUIDS. IN; Center Hole Diameter: 69.44 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: O-RING; Cross-Sectional Diameter: 3.53 MILLIMETERS NOMINAL MM. 2 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.