The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-512-1828, 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 L & M Radiator, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-512-1828 |
| Primary Part Number | 103888 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | L & M Radiator, Inc. |
| Status | ACTIVE |
| End Item Source | 3B570 |
| Tube Quantity | 138 |
| 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 |
|---|---|
| 103888 PRIMARY | L & M Radiator, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 20726C001 ITEM 16 | 5/2 Secondary reference U.S. Government activity |
NSN 4420-01-512-1828 is a Cooler,fluid,industrial, manufactured by L & M Radiator, Inc., classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-512-1828 has 1 manufacturer part number on file: 103888 (L & M Radiator, Inc.).
Key specifications for 103888: End Item Source: 3B570; Tube Quantity: 138; Special Features: ASSY INCLUDES: 1 OIL COOLER FRAME (P/N 104070), 276 RUBBER SEALS (P/N 35780), 138 TUBES (P/N 123.10.3488), 138 TUBE RETAINERS (P/N 105753), 414 COPPER WASHERS (P/N 63377), 1 SUPPORT BAR (P/N 104071), 1 SUPPORT BAR (P/N 104072), 8 FLANGE LOCK NUTS (P/N 98751.37), 8 C/S, HX, PL (P/N 33054.04), 8 F/W, MED, PL (P/N 42174.07), 2 FELT BOTTOM AIR BAFFLES (P/N 33083.31) AND 1 SPECIAL COATING (P/N SP108); MAX PRESSURE IS 150 PSI; INLET IS THREADED 1 7/8-12UNF-2B O-RING BOSS; UNIT HAS 4 ROW PLAIN TUBE CORE AND IS RECTANGLAR IN SHAPE WITH UNFLANGED INLET AND OUTLET; Part Name Assigned by Controlling Agency: HEAT EXCHANGER. 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.