The Ring,wearing, cataloged under National Stock Number 4320-00-102-2591, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-102-2591 |
| Primary Part Number | 4158A-14000 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | The Gorman-Rupp Company Div Gorman-Rupp |
| Status | ACTIVE |
| Corner Shape | ROUND INSIDE RIGHT CORNER |
| Corner Radius | 0.656 INCHES NOMINAL ALL CORNERS IN |
| Internal Flange Outside Diameter | 2.750 INCHES NOMINAL IN |
| Body Style | INTERNAL FLANGE |
| Internal Flange Lip Width | 0.160 INCHES NOMINAL IN |
| Body Outside Diameter | 3.500 INCHES NOMINAL IN |
| End to Flange Distance | 0.600 INCHES NOMINAL IN |
| Internal Flange Inside Diameter | 2.688 INCHES NOMINAL IN |
| Body Inside Diameter | 3.140 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Internal Flange Width | 0.386 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 |
|---|---|
| 4158A-14000 PRIMARY | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| Reference | Meaning |
|---|---|
| 4158A | 5/9 Secondary reference The Gorman-Rupp Company Div Gorman-Rupp |
| 4158ANR | 5/9 Secondary reference The Gorman-Rupp Company Div Gorman-Rupp |
NSN 4320-00-102-2591 is a Ring,wearing, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-102-2591 has 1 manufacturer part number on file: 4158A-14000 (The Gorman-Rupp Company Div Gorman-Rupp).
Key specifications for 4158A-14000: Corner Shape: ROUND INSIDE RIGHT CORNER; Corner Radius: 0.656 INCHES NOMINAL ALL CORNERS IN; Internal Flange Outside Diameter: 2.750 INCHES NOMINAL IN; Body Style: INTERNAL FLANGE. 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.