The Ring,wearing, cataloged under National Stock Number 4320-01-198-5683, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Carver Pump Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-198-5683 |
| Primary Part Number | 676-1213-209 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Corner Shape | SQUARE ALL CORNERS |
| Body Style | GROOVED W/EXTERNAL LOCKING FLANGE |
| Distance From End | 0.312 INCHES NOMINAL IN |
| Body Outside Diameter | 6.124 INCHES MINIMUM AND 6.125 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-M-16576 MIL SPEC SINGLE MATERIAL RESPONSE |
| Groove Depth | 0.120 INCHES NOMINAL IN |
| Distance From End to Groove Center | 0.100 INCHES NOMINAL IN |
| Distance Below Centerline | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 5.260 INCHES MINIMUM AND 5.263 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Groove Width | 0.150 INCHES NOMINAL IN |
| Distance Between Groove Centers | 0.653 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 |
|---|---|
| 2HCS-166 PIECE 22 | Carver Pump Company (USA) |
| 2HCS-165 PIECE 22 | Carver Pump Company (USA) |
| 676-1213-209 PRIMARY | Carver Pump Company (USA) |
| 55-22034-18 | Euramco Safety Inc (USA) |
| Reference | Meaning |
|---|---|
| 2HCS-165 PIECE 22 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 2-7-10BG | C/1 Advisory reference — outside the item-of-supply concept Aurora Pump a Unit of General Signal Corp |
| 2-7-108BG | 5/9 Secondary reference Carver Pump Company |
| 3324682 | D/9 Drawing number reference only U.S. Government activity |
| 2HCS-165 | D/9 Drawing number reference only Aurora Pump a Unit of General Signal Corp |
| 2-7-108BG | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 2HCS-166 | D/9 Drawing number reference only Aurora Pump a Unit of General Signal Corp |
| 3324682 PIECE 22 | 5/9 Secondary reference U.S. Government activity |
| 2HCS-166 PIECE 22 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-01-198-5683 is a Ring,wearing, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-198-5683 has 4 manufacturer part numbers on file: 2HCS-166 PIECE 22 (Carver Pump Company), 2HCS-165 PIECE 22 (Carver Pump Company), 676-1213-209 (Carver Pump Company), 55-22034-18 (Euramco Safety Inc).
Key specifications for 676-1213-209: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Corner Shape: SQUARE ALL CORNERS; Body Style: GROOVED W/EXTERNAL LOCKING FLANGE; Distance From End: 0.312 INCHES NOMINAL IN. 13 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.