The O-Ring, cataloged under National Stock Number 5331-01-688-2821, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-688-2821 |
| Primary Part Number | 201951 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Brunswick Corp Dba Mercury Marine Div Mercury Marine |
| Status | ACTIVE |
| Center Hole Diameter | 0.487 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 201951 PRIMARY | Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA) |
NSN 5331-01-688-2821 is a O-Ring, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-688-2821 has 1 cross-referenced part number: 201951 (Brunswick Corp Dba Mercury Marine Div Mercury Marine).
There are 5 known substitutes for 5331-01-688-2821: 2520-00-147-8666, 5940-00-194-6511, 5310-00-214-3195 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 201951: End Item Identification: ENGINE,OUTBOARD; Center Hole Diameter: 0.487 INCHES NOMINAL IN; Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING. 4 total characteristics are documented in the Federal Logistics Information System.