The Ring,wearing, cataloged under National Stock Number 4320-00-618-6816, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Itt Goulds Pumps, Inc.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-618-6816 |
| Primary Part Number | 08-999-415-00-003 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Itt Goulds Pumps, Inc. |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 5.748 INCHES MINIMUM AND 5.749 INCHES MAXIMUM IN |
| Distance Below Centerline | 0.063 INCHES NOMINAL IN |
| Body Inside Diameter | 5.360 INCHES MINIMUM AND 5.361 INCHES MAXIMUM IN |
| Smallest External Anchor Flange Radius | 2.969 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Largest External Anchor Flange Radius | 3.125 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 |
|---|---|
| 08-999-415-00-003 PRIMARY | Itt Goulds Pumps, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 08-999-415-00-003 | 3/9 Design control — primary reference Itt Fluid Technology Corp |
| 08-401-793PC4 | 5/9 Secondary reference U.S. Government activity |
| 08-500-823 | 5/9 Secondary reference U.S. Government activity |
| 08-999-415-00-003 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-618-6816 is a Ring,wearing, manufactured by Itt Goulds Pumps, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-618-6816 has 1 manufacturer part number on file: 08-999-415-00-003 (Itt Goulds Pumps, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-200-8034, 4320-01-200-8872. Verify interchangeability with system specifications before substitution.
Key specifications for 08-999-415-00-003: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 5.748 INCHES MINIMUM AND 5.749 INCHES MAXIMUM IN; Overall Length: 0.969 INCHES NOMINAL 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.