The O-Ring, cataloged under National Stock Number 5331-01-125-3511, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (CAGE 52374); Timken Gears & Services Inc. Div Philadelphia Gear (CAGE 17454) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-125-3511 |
| Primary Part Number | 01-416-0004-4 PIECE 118 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| 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 |
|---|---|
| 01-416-0004-4 PIECE 118 | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA) |
| 01-416-0004-4 PIECE 118 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 01-416-0004-4PC | C/1 Advisory reference — outside the item-of-supply concept Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
NSN 5331-01-125-3511 is a O-Ring, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-125-3511 has 2 manufacturer part numbers on file: 01-416-0004-4 PIECE 118 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), 01-416-0004-4 PIECE 118 (Timken Gears & Services Inc. Div Philadelphia Gear).
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.