The O-Ring, cataloged under National Stock Number 5331-01-406-2158, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Isotta Fraschini Motori Spa. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Isotta Fraschini Motori Spa (CAGE A0106) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-406-2158 |
| Primary Part Number | 911424 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Isotta Fraschini Motori Spa |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 911424 | Isotta Fraschini Motori Spa (ITA) |
| Reference | Meaning |
|---|---|
| SS350-67 | 3/9 Design control — primary reference Ingersoll-Rand Co Professional Tools Group |
NSN 5331-01-406-2158 is a O-Ring, manufactured by Isotta Fraschini Motori Spa, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-406-2158 has 1 manufacturer part number on file: 911424 (Isotta Fraschini Motori Spa).
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.