The O-Ring, cataloged under National Stock Number 5331-01-529-6363, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Generac Mobile Products, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-529-6363 |
| Primary Part Number | P3921 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Generac Mobile Products, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.188 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 14.000 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| P3921 PRIMARY | Generac Mobile Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| P3921 | 3/9 Design control — primary reference C. H. & E. Manufacturing Co. Inc Div Abs Dewatering |
NSN 5331-01-529-6363 is a O-Ring, manufactured by Generac Mobile Products, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-529-6363 has 1 manufacturer part number on file: P3921 (Generac Mobile Products, Llc).
Key specifications for P3921: Cross-Sectional Height: 0.188 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 14.000 INCHES NOMINAL IN; End Item Identification: PUMP GROUP. 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.