The O-Ring, cataloged under National Stock Number 5331-01-463-4547, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-463-4547 |
| Primary Part Number | 6593-N-993 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.375 INCHES NOMINAL IN |
| Center Hole Diameter | 0.875 INCHES NOMINAL IN |
| Material | PLASTIC TETRAFLUOROETHYLENE |
| 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 |
|---|---|
| 6593-N-993 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 1022-018H ITEM 12 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| CD1021-017-N-0001 REV D | D/9 Drawing number reference only Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| 6593-N-811 | 5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 5331-01-463-4547 is a O-Ring, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-463-4547 has 2 manufacturer part numbers on file: 6593-N-993 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 1022-018H ITEM 12 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 6593-N-993: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Center Hole Diameter: 0.875 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PACKING, PREFORMED; End Item Identification: VALVE GLB; NIMITZ CLASS CVN. 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.