The Ring,wearing, cataloged under National Stock Number 4320-01-009-5919, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-009-5919 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Center Flange Thickness | 0.172 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| Corner Shape | ROUND INSIDE RIGHT CORNER |
| Corner Radius | 0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN |
| Body Style | GROOVED W/INTERNAL AND EXTERNAL FLANGE |
| Body Outside Diameter | 7.499 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN |
| End to Flange Distance | 0.325 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-288 FED SPEC ALL MATERIAL RESPONSES |
| Groove Depth | 0.125 INCHES NOMINAL IN |
| Internal Flange Inside Diameter | 5.375 INCHES NOMINAL IN |
| Distance From End to Groove Center | 0.157 INCHES NOMINAL IN |
| Distance Below Centerline | 0.062 INCHES NOMINAL IN |
| Body Inside Diameter | 6.526 INCHES MINIMUM AND 6.528 INCHES MAXIMUM IN |
| Smallest External Anchor Flange Radius | 3.985 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY |
| Internal Flange Width | 0.312 INCHES NOMINAL IN |
| Largest External Anchor Flange Radius | 4.235 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN |
| Groove Width | 0.190 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 |
| Reference | Meaning |
|---|---|
| NA1289 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-009-5919 is a Ring,wearing, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-01-009-5919: Center Flange Thickness: 0.172 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN; Corner Shape: ROUND INSIDE RIGHT CORNER; Corner Radius: 0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN; Body Style: GROOVED W/INTERNAL AND EXTERNAL FLANGE. 17 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.