The O-Ring, cataloged under National Stock Number 5331-01-728-6769, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-728-6769 |
| Primary Part Number | 515-052-426 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.042 INCHES NOMINAL IN |
| Outside Diameter | 0.468 INCHES NOMINAL IN |
| Hardness Rating | 55.0 SHORE DUROMETER D NOMINAL |
| Color | ORANGE |
| Center Hole Diameter | 0.426 INCHES NOMINAL IN |
| Cross-Sectional Diameter | 0.042 INCHES NOMINAL IN |
| 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 |
|---|---|
| 515-052-426 PRIMARY | Sun Hydraulics Corporation (USA) |
| Reference | Meaning |
|---|---|
| D013U124 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5331-01-728-6769 is a O-Ring, manufactured by Sun Hydraulics Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-728-6769 has 1 manufacturer part number on file: 515-052-426 (Sun Hydraulics Corporation).
Key specifications for 515-052-426: Cross-Sectional Height: 0.042 INCHES NOMINAL IN; Outside Diameter: 0.468 INCHES NOMINAL IN; Hardness Rating: 55.0 SHORE DUROMETER D NOMINAL; Color: ORANGE. 6 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.