The O-Ring, cataloged under National Stock Number 5331-01-326-4944, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Ge Aviation Systems Llc (CAGE 35012); Trelleborg Sealing Solutions (uk) Ltd (CAGE U1068); Ge Aviation Systems Ltd (CAGE K5294) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-326-4944 |
| Primary Part Number | 30-78101189 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 30-78101189 PRIMARY | Ge Aviation Systems Llc (USA) |
| 100-538-1590 | Trelleborg Sealing Solutions (uk) Ltd (GBR) |
| 30-781-1189 | Ge Aviation Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 100-538-1590 | 5/9 Secondary reference Ge Aviation Systems Llc |
| 30-78101189 | 3/9 Design control — primary reference Ge Aviation Systems Llc Dba Ge Aviation |
NSN 5331-01-326-4944 is a O-Ring, manufactured by Ge Aviation Systems Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-326-4944 has 3 manufacturer part numbers on file: 30-78101189 (Ge Aviation Systems Llc), 100-538-1590 (Trelleborg Sealing Solutions (uk) Ltd), 30-781-1189 (Ge Aviation Systems Ltd).
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.