The Tube Bundle Assembly, cataloged under National Stock Number 4420-01-201-2387, 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 Circor Pumps North America Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Tube Bundle Assembly |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Circor Pumps North America Llc (CAGE 59180); Tate Andale, Llc (CAGE 09032) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-201-2387 |
| Primary Part Number | PP091B |
| Item Name | Tube Bundle Assembly |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| PP091B PRIMARY | Circor Pumps North America Llc (USA) |
| 596000360013579 PRIMARY | Tate Andale, Llc (USA) |
| Reference | Meaning |
|---|---|
| E7432-13 | 5/9 Secondary reference Tate Andale, Llc |
| SG-4508 PIECE 22 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG-4508 | D/9 Drawing number reference only Siemens Energy, Inc. |
NSN 4420-01-201-2387 is a Tube Bundle Assembly, manufactured by Circor Pumps North America Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-201-2387 has 2 manufacturer part numbers on file: PP091B (Circor Pumps North America Llc), 596000360013579 (Tate Andale, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-202-0631, 2825-01-202-8563. Verify interchangeability with system specifications before substitution.
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.