The Disk Assembly,feed Tank, cataloged under National Stock Number 4420-01-237-6342, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Newterra Corporation, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-237-6342 |
| Primary Part Number | 143925 PIECE 3 |
| Item Name | Disk Assembly,feed Tank |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Newterra Corporation, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 7.000 IN. DIA; 1.875 IN. HIGH; 2.500 IN. BOTTOM SHAFT WITH A 1.000 IN. OPENING FROM TOP TO BOTTOM 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 |
|---|---|
| 143925 PIECE 3 PRIMARY | Newterra Corporation, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 143925 | D/9 Drawing number reference only Newterra Corporation, Inc. |
NSN 4420-01-237-6342 is a Disk Assembly,feed Tank, manufactured by Newterra Corporation, Inc., classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-237-6342 has 1 manufacturer part number on file: 143925 PIECE 3 (Newterra Corporation, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-316-0153. Verify interchangeability with system specifications before substitution.
Key specifications for 143925 PIECE 3: General Characteristics Item Description: 7.000 IN. DIA; 1.875 IN. HIGH; 2.500 IN. BOTTOM SHAFT WITH A 1.000 IN. OPENING FROM TOP TO BOTTOM IN. 1 specification is 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.