The O-Ring, cataloged under National Stock Number 5331-00-087-8528, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Porter Seal Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-087-8528 |
| Primary Part Number | 2-248 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Porter Seal Co |
| Status | ACTIVE |
| Hardness Rating | 80.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 4.704 INCHES MINIMUM AND 4.764 INCHES MAXIMUM IN |
| Outside Diameter | 4.974 INCHES MINIMUM AND 5.050 INCHES MAXIMUM IN |
| Material | RUBBER |
| Temp Rating | -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 305092 | Tally Printer Corporation (USA) |
| DBA2-248 | Porter Seal Co (USA) |
| 2-248 PRIMARY | Porter Seal Co (USA) |
| DBA2-248 E540-80 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| A-248 PRIMARY | Porter Seal Co (USA) |
| 305090 | Tally Printer Corporation (USA) |
| 2-248 E540-80 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
NSN 5331-00-087-8528 is a O-Ring, manufactured by Porter Seal Co, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-087-8528 has 7 cross-referenced part numbers: 305092 (Tally Printer Corporation), DBA2-248 (Porter Seal Co), 2-248 (Porter Seal Co), DBA2-248 E540-80 (Parker-Hannifin Corp Div O-Ring Division), A-248 (Porter Seal Co) and 2 more.
There are 10 known substitutes for 5331-00-087-8528: 4730-00-130-6255, 5999-00-233-0255, 4320-00-339-2609 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-248: Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 4.704 INCHES MINIMUM AND 4.764 INCHES MAXIMUM IN; Outside Diameter: 4.974 INCHES MINIMUM AND 5.050 INCHES MAXIMUM IN; Material: RUBBER. 6 total characteristics are documented in the Federal Logistics Information System.