NSN 5840-01-164-9852 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-164-9852. Manufacturer of record part number: 168991.
General Characteristics Item Description: PERFORMANCE; FLUID CIRCULATED ON SHELL SIDE IS DISTILLED WATER,ON TUBE SIDE FRESH WATER; FLOW GPM ON SHELL SIDE 10.5 ON TUBE SIDE 6; HEAT EXCHANGED 45000 BTU/HR; FUNCTION PROVIDES A FRESH WATER COOLING LOOP TO COOL THE CLOSED LOOP DISTILLED WATER SYSTEM; 27.250 IN. LG,5.250 IN. W,9.100 IN. H IN
1 manufacturer part number on file
Manufacturer of record: Northrop Grumman Systems Corporation
Identification
NSN: 5840-01-164-9852
NIIN: 011649852
FSC: 5840 — Radar Equipment, Except Airborne
FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
Primary part number: 168991
Manufacturer: Northrop Grumman Systems Corporation
General Description
The Heat Exchanger,cool, cataloged under National Stock Number 5840-01-164-9852, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5840-01-164-9852
Primary Part Number
168991
Item Name
Heat Exchanger,cool
FSC / FSG
5840 / 58 — Radar Equipment, Except Airborne
Manufacturer
Northrop Grumman Systems Corporation
Status
ACTIVE
General Characteristics Item Description
PERFORMANCE; FLUID CIRCULATED ON SHELL SIDE IS DISTILLED WATER,ON TUBE SIDE FRESH WATER; FLOW GPM ON SHELL SIDE 10.5 ON TUBE SIDE 6; HEAT EXCHANGED 45000 BTU/HR; FUNCTION PROVIDES A FRESH WATER COOLING LOOP TO COOL THE CLOSED LOOP DISTILLED WATER SYSTEM; 27.250 IN. LG,5.250 IN. W,9.100 IN. H IN
Other items in FSC 5840 — Radar Equipment, Except Airborne
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5840-00-001-1605
5840-00-001-1605 · Item name not on file
5840-00-001-1606
5840-00-001-1606 · Item name not on file
5840-00-001-1607
5840-00-001-1607 · Item name not on file
5840-00-001-1608
5840-00-001-1608 · Item name not on file
5840-00-001-1609
5840-00-001-1609 · Item name not on file
5840-00-001-1610
5840-00-001-1610 · Item name not on file
5840-00-001-1611
5840-00-001-1611 · Item name not on file
5840-00-001-1612
5840-00-001-1612 · Item name not on file
Frequently Asked Questions
What is NSN 5840-01-164-9852?
NSN 5840-01-164-9852 is a Heat Exchanger,cool, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
What part numbers are listed for NSN 5840-01-164-9852?
NSN 5840-01-164-9852 has 1 manufacturer part number on file: 168991 (Northrop Grumman Systems Corporation).
What are the specifications of 168991?
Key specifications for 168991: General Characteristics Item Description: PERFORMANCE; FLUID CIRCULATED ON SHELL SIDE IS DISTILLED WATER,ON TUBE SIDE FRESH WATER; FLOW GPM ON SHELL SIDE 10.5 ON TUBE SIDE 6; HEAT EXCHANGED 45000 BTU/HR; FUNCTION PROVIDES A FRESH WATER COOLING LOOP TO COOL THE CLOSED LOOP DISTILLED WATER SYSTEM; 27.250 IN. LG,5.250 IN. W,9.100 IN. H IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 5840-01-164-9852 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.