The O-Ring, cataloged under National Stock Number 5331-01-608-4561, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-608-4561 |
| Primary Part Number | 4464T363 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Center Hole Diameter | 3.375 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| 4464T363 PRIMARY | Mcmaster-Carr Supply Company (USA) |
NSN 5331-01-608-4561 is a O-Ring, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-608-4561 has 1 manufacturer part number on file: 4464T363 (Mcmaster-Carr Supply Company).
Key specifications for 4464T363: Special Features: OUTSIDE DIAMETER 3.375;INSIDE DIAMETER 3.375A65 DUROMETER;AS568A;BLACK; Center Hole Diameter: 3.375 INCHES NOMINAL IN; End Item Identification: MODEL KI; Material: RUBBER BUTADIENE NITRILE. 2 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.