The Ring,wearing, cataloged under National Stock Number 4320-00-866-4863, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-00-866-4863 |
| Primary Part Number | 766B0035C130A |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Distance Between Flanges | 1.125 INCHES MINIMUM AND 1.128 INCHES MAXIMUM IN |
| Chamfer Length | 0.250 INCHES NOMINAL OUTSIDE RIGHT CORNER IN |
| Chamfer Length | 0.438 INCHES NOMINAL OUTSIDE LEFT CORNER IN |
| Body Style | EXTERNAL LOCKING FLANGE |
| Distance From End | 1.000 INCHES NOMINAL IN |
| Body Outside Diameter | 1.750 INCHES NOMINAL IN |
| End to Flange Distance | 2.000 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.500 INCHES NOMINAL IN |
| Distance Below Centerline | 0.062 INCHES NOMINAL IN |
| Body Inside Diameter | 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN |
| Right Side Flange Thickness | 0.875 INCHES NOMINAL IN |
| Smallest External Anchor Flange Radius | 0.813 INCHES NOMINAL IN |
| Chamfer Angle | 14.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER |
| Chamfer Angle | 29.0 DEGREES NOMINAL OUTSIDE LEFT CORNER |
| Material | COPPER ALLOY |
| Largest External Anchor Flange Radius | 1.125 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 |
|---|---|
| 766B0035C130A PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| 766B0035C130L | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
NSN 4320-00-866-4863 is a Ring,wearing, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-866-4863 has 1 manufacturer part number on file: 766B0035C130A (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for 766B0035C130A: Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: CHAMFERED OUTSIDE LEFT CORNER; Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER. 20 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.