The O-Ring, cataloged under National Stock Number 5331-01-397-8191, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Western Sky Industries Inc Dba Electromech Techologies. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-397-8191 |
| Primary Part Number | 4652 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Western Sky Industries Inc Dba Electromech Techologies |
| Status | ACTIVE |
| Cross-Sectional Height | 0.003 INCHES NOMINAL IN |
| Material Document and Classification | NAS 1613 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 4.500 INCHES NOMINAL IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM |
| 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 |
|---|---|
| 4652 PRIMARY | Western Sky Industries Inc Dba Electromech Techologies (USA) |
| Reference | Meaning |
|---|---|
| 4652 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-397-8191 is a O-Ring, manufactured by Western Sky Industries Inc Dba Electromech Techologies, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-397-8191 has 1 manufacturer part number on file: 4652 (Western Sky Industries Inc Dba Electromech Techologies).
Key specifications for 4652: Cross-Sectional Height: 0.003 INCHES NOMINAL IN; Material Document and Classification: NAS 1613 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 4.500 INCHES NOMINAL IN; Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM. 4 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.