The O-Ring, cataloged under National Stock Number 5331-01-513-6964, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cleveland Gear Company, Inc. Dba Cleveland Gear Co. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-513-6964 |
| Primary Part Number | Z1057B2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
| Status | ACTIVE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| Z1057B2 PRIMARY | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA) |
| 01070-0342 REV B ITEM NO.402 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
NSN 5331-01-513-6964 is a O-Ring, manufactured by Cleveland Gear Company, Inc. Dba Cleveland Gear Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-513-6964 has 2 manufacturer part numbers on file: Z1057B2 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co), 01070-0342 REV B ITEM NO.402 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for Z1057B2: Special Features: MATERIAL VITON; End Item Identification: TURNING GEAR; Material: RUBBER FLUOROCARBON CLASS FPM. 1 specification is 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.