The O-Ring, cataloged under National Stock Number 5331-01-142-8688, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-142-8688 |
| Primary Part Number | 30-781-210-99 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ge Aviation Systems Ltd |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.482 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 30-781-210-99 | Ge Aviation Systems Ltd (GBR) |
| 30-782-210-99 | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 30-782-210-99 | 3/9 Design control — primary reference Ge Aviation Systems Ltd |
| 10117170 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-142-8688 is a O-Ring, manufactured by Ge Aviation Systems Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-142-8688 has 2 manufacturer part numbers on file: 30-781-210-99 (Ge Aviation Systems Ltd), 30-782-210-99 (Ge Aviation Systems Llc).
Key specifications for 30-781-210-99: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 0.482 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.