The Ring,wearing, cataloged under National Stock Number 4320-00-541-6038, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Fmc Corp. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-00-541-6038 |
| Primary Part Number | HV2-19-2 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Fmc Corp |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE |
| Surface Finish | 125.0 MICROINCHES LEFT FACE |
| Surface Finish | 125.0 MICROINCHES INSIDE |
| Surface Finish | 125.0 MICROINCHES RIGHT FACE |
| Flange Diameter | 3.750 INCHES NOMINAL IN |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 3.498 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN |
| Internal Flange Inside Diameter | 1.758 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Body Inside Diameter | 2.008 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Material | STEEL |
| Internal Flange Width | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| HV2-19-2 | Fmc Corp (USA) |
| Reference | Meaning |
|---|---|
| HV2-19-2 | 3/9 Design control — primary reference Clow Corp Pump Div |
NSN 4320-00-541-6038 is a Ring,wearing, manufactured by Fmc Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-541-6038 has 1 manufacturer part number on file: HV2-19-2 (Fmc Corp).
Key specifications for HV2-19-2: Surface Finish: 125.0 MICROINCHES OUTSIDE; Surface Finish: 125.0 MICROINCHES LEFT FACE; Surface Finish: 125.0 MICROINCHES INSIDE; Surface Finish: 125.0 MICROINCHES RIGHT FACE. 11 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.