The O-Ring, cataloged under National Stock Number 5331-01-321-9643, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is General Electric Co Apparatus and Engineering Service Organization Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | General Electric Co Apparatus and Engineering Service Organization Div (CAGE 4T674) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-321-9643 |
| Primary Part Number | 164A6216 PC1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | General Electric Co Apparatus and Engineering Service Organization Div |
| 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 |
|---|---|
| 164A6216 PC1 PRIMARY | General Electric Co Apparatus and Engineering Service Organization Div (USA) |
| Reference | Meaning |
|---|---|
| 871D841 PIECE 30 | 5/9 Secondary reference General Electric Co Large Steam Turbine-Generator Dept |
| 164A6216 PIECE 1 | 5/9 Secondary reference General Electric Co Large Steam Turbine-Generator Dept |
NSN 5331-01-321-9643 is a O-Ring, manufactured by General Electric Co Apparatus and Engineering Service Organization Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-321-9643 has 1 manufacturer part number on file: 164A6216 PC1 (General Electric Co Apparatus and Engineering Service Organization Div).
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.