PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

660-4Intercooler

Graham Corp · NSN 3655-01-134-7063 · FSC 3655 · No Item Name Available
Verified by PartsTable
NSN 3655-01-134-7063 — this item is cataloged by the U.S. Government under National Stock Number 3655-01-134-7063. Primary manufacturer part number: 660-4.
Features
  • Intercooler — FSC 3655
  • General Characteristics Item Description: 18.5 IN. DIAMETER; DEPTH 14.375 IN.; CONSISTS OF 2 LOCK RING-MANIFOLD P/N D791-1172-9; 1 CASING P/N D791-11723; 1 BASE PLATE P/N D791-1172-2 IN
  • 3 verified cross-references
  • Primary manufacturer: Graham Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Intercooler, cataloged under National Stock Number 3655-01-134-7063, is classified within Federal Supply Class 3655 (No Item Name Available) of the Special Industry Machinery group. The primary manufacturer of record is Graham Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3655-01-134-7063
Primary Part Number660-4
Item NameIntercooler
FSC / FSG3655 / 36 — No Item Name Available
ManufacturerGraham Corp
StatusACTIVE
General Characteristics Item Description18.5 IN. DIAMETER; DEPTH 14.375 IN.; CONSISTS OF 2 LOCK RING-MANIFOLD P/N D791-1172-9; 1 CASING P/N D791-11723; 1 BASE PLATE P/N D791-1172-2 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-082-4746 INTERCHANGEABLE
Terminal,feedthru
5940-00-259-792911-342 INTERCHANGEABLE
Post,binding,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4730-00-469-78206604 B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
4931-00-737-6265395779 INTERCHANGEABLE
Mount,crystal and B
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5940-00-849-4479 INTERCHANGEABLE
Terminal,lug
4810-01-317-782482331 INTERCHANGEABLE
Solenoid,valve
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
3910-01-385-6322 INTERCHANGEABLE
Conveyor,acft Baggage,special
6150-01-483-7253132108-17 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Bay Electronics Inc Dba Bay Electronics Inc
6515-01-490-58526604 INTERCHANGEABLE
Plug,ear
Moldex-Metric, Inc. Dba Moldex Metric Inc
Cross-Reference Index
Part NumberManufacturer
D791-1172 Gas Equipment Engineering Corporation, the Dba Geeco (USA)
660-4 PRIMARY Graham Corp (USA)
660-4 Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3 (USA)
Related Parts
5940-00-082-4746INTERCHANGEABLE
TERMINAL,FEEDTHRU
5940-00-259-7929INTERCHANGEABLE
POST,BINDING,ELECTRICAL
11-342
4730-00-469-7820INTERCHANGEABLE
CLAMP,HOSE
6604 B
4931-00-737-6265INTERCHANGEABLE
MOUNT,CRYSTAL AND B
395779
5940-00-849-4479INTERCHANGEABLE
TERMINAL,LUG
4810-01-317-7824INTERCHANGEABLE
SOLENOID,VALVE
82331
3910-01-385-6322INTERCHANGEABLE
CONVEYOR,ACFT BAGGAGE,SPECIAL
6150-01-483-7253INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
132108-17
6515-01-490-5852INTERCHANGEABLE
PLUG,EAR
6604

Frequently Asked Questions

What is NSN 3655-01-134-7063?

NSN 3655-01-134-7063 is a Intercooler, manufactured by Graham Corp, classified under FSC 3655 (No Item Name Available). Status: active.

What are the part numbers for NSN 3655-01-134-7063?

NSN 3655-01-134-7063 has 3 cross-referenced part numbers: D791-1172 (Gas Equipment Engineering Corporation, the Dba Geeco), 660-4 (Graham Corp), 660-4 (Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3).

What NSN replaces 3655-01-134-7063?

There are 9 known substitutes for 3655-01-134-7063: 5940-00-082-4746, 5940-00-259-7929, 4730-00-469-7820 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 660-4?

Key specifications for 660-4: General Characteristics Item Description: 18.5 IN. DIAMETER; DEPTH 14.375 IN.; CONSISTS OF 2 LOCK RING-MANIFOLD P/N D791-1172-9; 1 CASING P/N D791-11723; 1 BASE PLATE P/N D791-1172-2 IN; End Item Identification: 3655010938771. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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