The O-Ring, cataloged under National Stock Number 5331-01-534-7372, 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 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-534-7372 |
| Primary Part Number | Z1057AJ |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.278 INCHES NOMINAL IN |
| Center Hole Diameter | 8.734 INCHES NOMINAL IN |
| 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 |
|---|---|
| Z1057AJ PRIMARY | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA) |
| 1003DH-S0801211 ITEM NO. 19 | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA) |
| Z1057AJ | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
NSN 5331-01-534-7372 is a O-Ring, manufactured by Cleveland Gear Company, Inc. Dba Cleveland Gear Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-534-7372 has 3 manufacturer part numbers on file: Z1057AJ (Cleveland Gear Company, Inc. Dba Cleveland Gear Co), 1003DH-S0801211 ITEM NO. 19 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co), Z1057AJ (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C).
Key specifications for Z1057AJ: Cross-Sectional Height: 0.278 INCHES NOMINAL IN; Center Hole Diameter: 8.734 INCHES NOMINAL IN; End Item Identification: STRAINER, DUPLEX (10.00 IN, 150 PSI, FLGE BRZ) IN; Material: RUBBER FLUOROCARBON CLASS FPM. 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.