The O-Ring, cataloged under National Stock Number 5331-00-372-8633, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-372-8633 |
| Primary Part Number | AS568-135MILP5516CLB |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 1.915 INCHES MINIMUM AND 1.935 INCHES MAXIMUM IN |
| Outside Diameter | 2.131 INCHES NOMINAL IN |
| Hardness Rating | 88.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 160 MAXIMUM |
| Center Hole Diameter | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AS568-135MILP5516CLB PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS568-135MILP55 16CLB | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS568-135MILP5516CLB | 3/9 Design control — primary reference U.S. Government activity |
| K9443135AAPC135 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 5331-00-372-8633 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-372-8633 has 1 manufacturer part number on file: AS568-135MILP5516CLB (Sae International Dba Sae International).
Key specifications for AS568-135MILP5516CLB: Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Cross-Sectional Height: 1.915 INCHES MINIMUM AND 1.935 INCHES MAXIMUM IN; Outside Diameter: 2.131 INCHES NOMINAL IN; Hardness Rating: 88.0 SHORE DUROMETER A NOMINAL. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.