The Ring,wearing, cataloged under National Stock Number 4320-00-618-9082, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Allis Chalmers Corp Industrial Pump Div. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-00-618-9082 |
| Primary Part Number | 08-999-527ITEM2 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Allis Chalmers Corp Industrial Pump Div |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | PLAIN W/INTERNAL FLANGE |
| Body Outside Diameter | 4.256 INCHES MINIMUM AND 4.257 INCHES MAXIMUM IN |
| Internal Flange Inside Diameter | 3.860 INCHES MINIMUM AND 3.865 INCHES MAXIMUM IN |
| Body Inside Diameter | 3.875 INCHES MINIMUM AND 3.876 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Internal Flange Width | 0.234 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 |
|---|---|
| 08-999-527ITEM2 PRIMARY | Allis Chalmers Corp Industrial Pump Div (USA) |
| Reference | Meaning |
|---|---|
| 08-999-527-00-003 | 5/9 Secondary reference U.S. Government activity |
| 08-999-527ITEM2 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-618-9082 is a Ring,wearing, manufactured by Allis Chalmers Corp Industrial Pump Div, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-618-9082 has 1 manufacturer part number on file: 08-999-527ITEM2 (Allis Chalmers Corp Industrial Pump Div).
Key specifications for 08-999-527ITEM2: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Corner Shape: SQUARE ALL CORNERS; Body Style: PLAIN W/INTERNAL FLANGE; Body Outside Diameter: 4.256 INCHES MINIMUM AND 4.257 INCHES MAXIMUM IN. 8 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.