The O-Ring, cataloged under National Stock Number 5331-01-031-0790, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-031-0790 |
| Primary Part Number | BACP11AC212 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Cross-Sectional Height | 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| 2-212LM152-60 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| BACP11AC212 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| 2-212L608-65 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| L0946 2-212 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 212-11646 | 5/9 Secondary reference Parker Hannifin Corporation Div O-Ring Division |
| 2-212L946-60 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| BACP11AC212 | 5/9 Secondary reference U.S. Government activity |
| B67112-212 | 5/9 Secondary reference Parco, Llc |
| B-212TH 1058 | 5/9 Secondary reference U.S. Government activity |
| 13-04-212 | 5/9 Secondary reference Burke Industries Purosil Div |
NSN 5331-01-031-0790 is a O-Ring, manufactured by The Boeing Company Div Commercial, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-031-0790 has 2 manufacturer part numbers on file: 2-212LM152-60 (Parker-Hannifin Corp Div O-Ring Division), BACP11AC212 (The Boeing Company Div Commercial).
Key specifications for BACP11AC212: Cross-Sectional Height: 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN; Material: RUBBER FLUOROSILICONE CLASS FQ. 3 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.