The Head,main, cataloged under National Stock Number 4420-01-196-7547, 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 Tate Andale, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-196-7547 |
| Primary Part Number | N5506 PIECE 99 |
| Item Name | Head,main |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Tate Andale, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | MATL NIC,AL,BRZ; MATL SPEC MIL-B-21230A; END ITEM LEFT HAND INDUST FLUID COOLER A |
| 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 |
|---|---|
| N5506 PIECE 99 PRIMARY | Tate Andale, Llc (USA) |
| Reference | Meaning |
|---|---|
| N5506 | D/9 Drawing number reference only Tate Andale, Llc |
NSN 4420-01-196-7547 is a Head,main, manufactured by Tate Andale, Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-196-7547 has 1 manufacturer part number on file: N5506 PIECE 99 (Tate Andale, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4420-01-196-7637. Verify interchangeability with system specifications before substitution.
Key specifications for N5506 PIECE 99: General Characteristics Item Description: MATL NIC,AL,BRZ; MATL SPEC MIL-B-21230A; END ITEM LEFT HAND INDUST FLUID COOLER A. 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.