The O-Ring, cataloged under National Stock Number 5331-00-211-8040, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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 | 5331-00-211-8040 |
| Primary Part Number | L1120 5-818 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| Cross-Sectional Height | 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.159 INCHES MINIMUM AND 3.221 INCHES MAXIMUM IN |
| Elongation Percentage | 125 MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-R-25988B | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 5-818 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 5-818 | Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA) |
| C4406-1 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| L1120 5-818 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
NSN 5331-00-211-8040 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-211-8040 has 5 cross-referenced part numbers: MIL-R-25988B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5-818 (Parker-Hannifin Corp Div O-Ring Division), 5-818 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), C4406-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), L1120 5-818 (Parker-Hannifin Corp Div O-Ring Division).
There are 12 known substitutes for 5331-00-211-8040: 6105-00-049-4212, 5330-00-153-1041, 4030-00-227-1737 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for L1120 5-818: Material: RUBBER FLUOROSILICONE CLASS FQ; Cross-Sectional Height: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Center Hole Diameter: 3.159 INCHES MINIMUM AND 3.221 INCHES MAXIMUM IN; Elongation Percentage: 125 MAXIMUM. 4 total characteristics are documented in the Federal Logistics Information System.