The O-Ring Set, cataloged under National Stock Number 5331-01-621-6426, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is O. C. Keckley Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-621-6426 |
| Primary Part Number | VO-21/22RFD-36-SSDPXF |
| Item Name | O-Ring Set |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | O. C. Keckley Company |
| Status | ACTIVE |
| Component Quantity | 10 |
| Nonsupply Items and Quantities | CHAMBER COVER O-RING 2,BASKET O-RING 2,VALVE COVER O-RING 2,END COVER O-RING 2, AND SPINDLE AND DRIVE SHAFT O-RING 2 |
| 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 |
|---|---|
| VO-21/22RFD-36-SSDPXF PRIMARY | O. C. Keckley Company (USA) |
| 2-1/2 O-RING KIT SSDPXF | Allied Supply Co Inc (USA) |
NSN 5331-01-621-6426 is a O-Ring Set, manufactured by O. C. Keckley Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-621-6426 has 2 manufacturer part numbers on file: VO-21/22RFD-36-SSDPXF (O. C. Keckley Company), 2-1/2 O-RING KIT SSDPXF (Allied Supply Co Inc).
Key specifications for VO-21/22RFD-36-SSDPXF: Component Quantity: 10; Nonsupply Items and Quantities: CHAMBER COVER O-RING 2,BASKET O-RING 2,VALVE COVER O-RING 2,END COVER O-RING 2, AND SPINDLE AND DRIVE SHAFT O-RING 2; End Item Identification: DUPLEX STRAINER. 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.