The O-Ring, cataloged under National Stock Number 5331-01-528-5824, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Met-Pro Corporation Dba Fybroc Division Div Fybroc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-528-5824 |
| Primary Part Number | 1530-4X4X10-73 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Met-Pro Corporation Dba Fybroc Division Div Fybroc |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 1530-4X4X10-73 PRIMARY | Met-Pro Corporation Dba Fybroc Division Div Fybroc (USA) |
| C500781 PN 73 | Met-Pro Corporation Dba Fybroc Division Div Fybroc (USA) |
| Reference | Meaning |
|---|---|
| C500781 PN 73 | 5/9 Secondary reference Fybroc Inc |
| 1530-4X4X10-73 | 5/9 Secondary reference Fybroc Inc |
NSN 5331-01-528-5824 is a O-Ring, manufactured by Met-Pro Corporation Dba Fybroc Division Div Fybroc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-528-5824 has 2 manufacturer part numbers on file: 1530-4X4X10-73 (Met-Pro Corporation Dba Fybroc Division Div Fybroc), C500781 PN 73 (Met-Pro Corporation Dba Fybroc Division Div Fybroc).
Key specifications for 1530-4X4X10-73: Part Name Assigned by Controlling Agency: O-RING, COVER; End Item Identification: PUMP, CENTRIFUGAL 1800 RPM RPM; Material: RUBBER SYNTHETIC. 1 specification is 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.