The O-Ring, cataloged under National Stock Number 5331-01-658-7266, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Msc Industrial Direct Co., Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-658-7266 |
| Primary Part Number | ZMSCH70006 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Msc Industrial Direct Co., Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.0625 INCHES NOMINAL IN |
| Outside Diameter | 0.25 INCHES NOMINAL IN |
| Color | BLACK |
| Center Hole Diameter | 0.125 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 |
|---|---|
| ZMSCH70006 | Msc Industrial Direct Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| ZMSCH70006 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-658-7266 is a O-Ring, manufactured by Msc Industrial Direct Co., Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-658-7266 has 1 manufacturer part number on file: ZMSCH70006 (Msc Industrial Direct Co., Inc.).
Key specifications for ZMSCH70006: Cross-Sectional Height: 0.0625 INCHES NOMINAL IN; Outside Diameter: 0.25 INCHES NOMINAL IN; Color: BLACK; Center Hole Diameter: 0.125 INCHES NOMINAL IN. 5 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.