The O-Ring, cataloged under National Stock Number 5331-01-218-8845, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-218-8845 |
| Primary Part Number | 2-213 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division |
| Status | ACTIVE |
| Hardness Rating | 50.0 SHORE DUROMETER A NOMINAL |
| Criticality Code Justification | ZZZY |
| Center Hole Diameter | 0.921 INCHES NOMINAL IN |
| Material | RUBBER SILICONE CLASS Q |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION |
| Temp Rating | -70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Outside Diameter | 1.181 INCHES MINIMUM AND 1.217 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-213 | Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division (USA) |
| 30031-1 PC 55 | Biach Industries, Inc. (USA) |
| 2-213S595-50 | Parker-Hannifin Corp Div O-Ring Division (USA) |
NSN 5331-01-218-8845 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-218-8845 has 3 cross-referenced part numbers: 2-213 (Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division), 30031-1 PC 55 (Biach Industries, Inc.), 2-213S595-50 (Parker-Hannifin Corp Div O-Ring Division).
There are 12 known substitutes for 5331-01-218-8845: 4240-00-188-3728, 5330-00-251-3226, 3439-00-255-4568 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-213: Hardness Rating: 50.0 SHORE DUROMETER A NOMINAL; Criticality Code Justification: ZZZY; Center Hole Diameter: 0.921 INCHES NOMINAL IN; Material: RUBBER SILICONE CLASS Q. 8 total characteristics are documented in the Federal Logistics Information System.