The O-Ring, cataloged under National Stock Number 5331-00-199-1644, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-199-1644 |
| Primary Part Number | AS568-256 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Society of Automotive Engineers Inc |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Center Hole Diameter | 5.711 INCHES MINIMUM AND 5.757 INCHES MAXIMUM IN |
| Outside Diameter | 6.012 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Elongation Percentage | 160 MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS568-256 | Society of Automotive Engineers Inc (USA) |
| ARP568-256MILP5516-90DURM | Society of Automotive Engineers Inc (USA) |
| AMS-5516 | Society of Automotive Engineers Inc (USA) |
| AS568-256MILP25732 | Society of Automotive Engineers Inc (USA) |
| AMS-5516 | Sae International Dba Sae International (USA) |
| AS568-256 | Sae International Dba Sae International (USA) |
NSN 5331-00-199-1644 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-199-1644 has 6 cross-referenced part numbers: AS568-256 (Society of Automotive Engineers Inc), ARP568-256MILP5516-90DURM (Society of Automotive Engineers Inc), AMS-5516 (Society of Automotive Engineers Inc), AS568-256MILP25732 (Society of Automotive Engineers Inc), AMS-5516 (Sae International Dba Sae International) and 1 more.
There are 4 known substitutes for 5331-00-199-1644: 5331-01-006-2030, 5331-01-028-8981, 5331-01-094-5959 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS568-256: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 5.711 INCHES MINIMUM AND 5.757 INCHES MAXIMUM IN; Outside Diameter: 6.012 INCHES NOMINAL IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.