The O-Ring, cataloged under National Stock Number 5331-00-433-3728, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pilatus Aircraft Ltd. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-433-3728 |
| Primary Part Number | 946.91.27.918 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pilatus Aircraft Ltd |
| Status | ACTIVE |
| Cross-Sectional Height | 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.349 INCHES MINIMUM AND 1.361 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 |
|---|---|
| 946.91.27.918 | Pilatus Aircraft Ltd (CHE) |
| Reference | Meaning |
|---|---|
| MS9387-18 | 2/2 Government specification standardization U.S. Government activity |
| MS9387-18 | 5/9 Secondary reference Le Joint Francais |
NSN 5331-00-433-3728 is a O-Ring, manufactured by Pilatus Aircraft Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-433-3728 has 1 manufacturer part number on file: 946.91.27.918 (Pilatus Aircraft Ltd).
Key specifications for 946.91.27.918: Cross-Sectional Height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Center Hole Diameter: 1.349 INCHES MINIMUM AND 1.361 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 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.