The Ring,wearing, cataloged under National Stock Number 4320-01-204-7975, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-204-7975 |
| Primary Part Number | 08-306-022-00-030 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg |
| Status | ACTIVE |
| Material Document and Classification | MIL-B-16261,GRADE 2 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY 934 |
| 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 |
|---|---|
| 08-306-022-00-030 PRIMARY | Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg (USA) |
| Reference | Meaning |
|---|---|
| 52-521-628 | D/9 Drawing number reference only U.S. Government activity |
| 52-521-641 PIECE 30 | 5/9 Secondary reference U.S. Government activity |
| 52-521-641 | D/9 Drawing number reference only U.S. Government activity |
| 08-306-022-00-030 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-204-7975 is a Ring,wearing, manufactured by Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-204-7975 has 1 manufacturer part number on file: 08-306-022-00-030 (Itt Water & Wastewater U.s.a., Inc. Itt Water & Wastewater Dba Itt Water & Wastewater Usa, Flyg).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-204-8042. Verify interchangeability with system specifications before substitution.
Key specifications for 08-306-022-00-030: Material Document and Classification: MIL-B-16261,GRADE 2 MIL SPEC SINGLE MATERIAL RESPONSE; End Item Identification: ALLIS CHALMERS MFG COMODEL 6X4 TYPE CFSD2V CENTRIFUGAL PUMP; Material: COPPER ALLOY 934. 2 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.