The Bonnet,oil Cooler, cataloged under National Stock Number 4420-01-185-8210, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-185-8210 |
| Primary Part Number | N5715 PIECE 6 |
| Item Name | Bonnet,oil Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Tate Andale, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST STEEL PER ASTM A216 GR WCB; 5.000 INCHES SQUARE; FOUR 0.562 INCH DIAMETER DRILLED THRU HOLES ALONG THE PERIPHERY,CENTER TO CENTER OF HOLES 3.625 INCHES; CENTER HOLE DRILLED THRU THDS 0.625-11 UNC 3B,ON CENTER FROM MOUNTING HOLES 1.812; WITH BY-PASS VALVE 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 |
|---|---|
| N5715 PIECE 6 PRIMARY | Tate Andale, Llc (USA) |
| H16559 PIECE 4V PRIMARY | Tate Andale, Llc (USA) |
| Reference | Meaning |
|---|---|
| N5715 | D/9 Drawing number reference only Tate Andale, Llc |
| H16559 | D/9 Drawing number reference only Tate Andale, Llc |
NSN 4420-01-185-8210 is a Bonnet,oil Cooler, manufactured by Tate Andale, Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-185-8210 has 2 manufacturer part numbers on file: N5715 PIECE 6 (Tate Andale, Llc), H16559 PIECE 4V (Tate Andale, Llc).
3 possible matches (shared part number, not a government interchangeability claim): 5340-01-186-8669, 4420-01-186-9478, 4420-01-186-9549. Verify interchangeability with system specifications before substitution.
Key specifications for N5715 PIECE 6: General Characteristics Item Description: CAST STEEL PER ASTM A216 GR WCB; 5.000 INCHES SQUARE; FOUR 0.562 INCH DIAMETER DRILLED THRU HOLES ALONG THE PERIPHERY,CENTER TO CENTER OF HOLES 3.625 INCHES; CENTER HOLE DRILLED THRU THDS 0.625-11 UNC 3B,ON CENTER FROM MOUNTING HOLES 1.812; WITH BY-PASS VALVE 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.