PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

609305Seat,helical Compression Spring

Aqua-Chem Inc Cleaver-Brooks Div · NSN 5340-00-143-6657 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-143-6657 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-143-6657. Primary manufacturer part number: 609305.
Features
  • Seat,helical Compression Spring — FSC 5340
  • 12 verified cross-references
  • Primary manufacturer: Aqua-Chem Inc Cleaver-Brooks Div
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-143-6657, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aqua-Chem Inc Cleaver-Brooks Div. This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Catalog Facts
Item NameSeat,helical Compression Spring
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersAqua-Chem Inc Cleaver-Brooks Div (CAGE 12793); Schramm, Inc. (CAGE 53496); Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (CAGE 96046); D & J Parts Inc (CAGE 54108); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349)
Technical Specifications
ParameterValue
NSN5340-00-143-6657
Primary Part Number609305
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerAqua-Chem Inc Cleaver-Brooks Div
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5985-00-005-2157399196-2 INTERCHANGEABLE
Attenuator,fixed
Raytheon Company Dba Raytheon Co
5905-00-134-9839914077-1 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5930-00-188-40194206 INTERCHANGEABLE
Switch,pressure
Taylor Made Environmental
5120-00-240-8702 INTERCHANGEABLE
Adapter,socket Wrench
3120-00-325-6202 INTERCHANGEABLE
Bearing,sleeve
2815-00-354-15355190012 INTERCHANGEABLE
Rotor Set,scavenge Air Blower
Rolls-Royce Solutions America Inc
1630-00-370-84514206 INTERCHANGEABLE
Seat
Avox Systems Inc Dba Avox Systems Inc
6625-00-465-6852 INTERCHANGEABLE
Probe,test
5915-00-501-1575H2000 INTERCHANGEABLE
Filter,band Pass
Magnetika Inc
3110-00-554-3913 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
609305 Aqua-Chem Inc Cleaver-Brooks Div (USA)
KEL2-27-1 Schramm, Inc. (USA)
15890 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
4206 D & J Parts Inc (USA)
QPL11275 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AG26 Wisconsin Motors, Llc (USA)
69496C1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
38884 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
609011 Aqua-Chem Inc Cleaver-Brooks Div (USA)
3-01AG26-8 Asphalt Equipment Co Inc (USA)
FLAG26 Wiens Metal Products Inc Road Equipment Div (USA)
69496C1 Komatsu American Intl Co (USA)
Related Parts
5985-00-005-2157INTERCHANGEABLE
ATTENUATOR,FIXED
399196-2
5905-00-134-9839INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
914077-1
5930-00-188-4019INTERCHANGEABLE
SWITCH,PRESSURE
4206
5120-00-240-8702INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
3120-00-325-6202INTERCHANGEABLE
BEARING,SLEEVE
2815-00-354-1535INTERCHANGEABLE
ROTOR SET,SCAVENGE AIR BLOWER
5190012
1630-00-370-8451INTERCHANGEABLE
SEAT
4206
6625-00-465-6852INTERCHANGEABLE
PROBE,TEST
5915-00-501-1575INTERCHANGEABLE
FILTER,BAND PASS
H2000
3110-00-554-3913INTERCHANGEABLE
BEARING,BALL,ANNULAR
5310-00-637-3469INTERCHANGEABLE
WASHER,FLAT
108885
5935-00-683-1866INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4206

Frequently Asked Questions

What is NSN 5340-00-143-6657?

NSN 5340-00-143-6657 is a Seat,helical Compression Spring, manufactured by Aqua-Chem Inc Cleaver-Brooks Div, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-143-6657?

NSN 5340-00-143-6657 has 12 cross-referenced part numbers: 609305 (Aqua-Chem Inc Cleaver-Brooks Div), KEL2-27-1 (Schramm, Inc.), 15890 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 4206 (D & J Parts Inc), QPL11275 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 7 more.

What NSN replaces 5340-00-143-6657?

There are 12 known substitutes for 5340-00-143-6657: 5985-00-005-2157, 5905-00-134-9839, 5930-00-188-4019 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5340-00-143-6657 still in active supply?

NSN 5340-00-143-6657 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com