The O-Ring, cataloged under National Stock Number 5331-00-831-6643, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-831-6643 |
| Primary Part Number | 111000-138 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Temp Rating | -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 2.318 INCHES NOMINAL IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 2.102 INCHES MINIMUM AND 2.122 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 111000-138 | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| AMS7259 | 5/9 Secondary reference U.S. Government activity |
| AMS7259 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS568-138 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS568-138 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-831-6643 is a O-Ring, manufactured by Pall Aeropower Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-831-6643 has 1 manufacturer part number on file: 111000-138 (Pall Aeropower Corporation).
Key specifications for 111000-138: Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 2.318 INCHES NOMINAL IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL. 6 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.