PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7603Spring,helical,extension

Telemechanics Inc · NSN 5360-00-526-1650 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-526-1650 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-526-1650. Primary manufacturer part number: 7603.
Features
  • Spring,helical,extension — FSC 5360
  • Hook Radius: 0.062 INCHES NOMINAL BOTH ENDS IN
  • Spring Free Length: 0.469 INCHES NOMINAL IN
  • Design Type: CLOSED
  • End Style: SHORT TWISTED HOOK BOTH ENDS
  • Coil Helix Direction: RIGHT-HAND
  • Inside Diameter: 0.121 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-00-526-1650, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 10 verified specifications, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-526-1650
Primary Part Number7603
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Hook Radius0.062 INCHES NOMINAL BOTH ENDS IN
Spring Free Length0.469 INCHES NOMINAL IN
Design TypeCLOSED
End StyleSHORT TWISTED HOOK BOTH ENDS
Coil Helix DirectionRIGHT-HAND
Inside Diameter0.121 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
MaterialSTEEL OVERALL
Coil Quantity16
Spring Free Outside Diameter0.149 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-258-9896205-102 INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
6625-00-261-51277603 INTERCHANGEABLE
Oscilloscope Mainframe
Tektronix, Inc.
5360-00-263-45657603 INTERCHANGEABLE
Spring,helical,compression
Te Connectivity Corporation
2825-00-388-69227603 INTERCHANGEABLE
Retainer,spring
Northrop Grumman Systems Corporation Div Marine Systems
5905-00-432-7650 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
4310-00-446-33887603 INTERCHANGEABLE
Ring,piston
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
5310-00-550-1469 INTERCHANGEABLE
Nut,plain,hexagon
3110-00-554-3355 INTERCHANGEABLE
Bearing,ball,annular
5330-00-559-2708 INTERCHANGEABLE
Seal,plain Encased
3030-01-043-674913605 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
Cross-Reference Index
Part NumberManufacturer
7603 PRIMARY Telemechanics Inc (USA)
7603 Zf Industrieantriebe Witten Gmbh (DEU)
7603 At and T Corp (USA)
Related Parts
5935-00-258-9896INTERCHANGEABLE
JACK,TIP
205-102
6625-00-261-5127INTERCHANGEABLE
OSCILLOSCOPE MAINFRAME
7603
5360-00-263-4565INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7603
2825-00-388-6922INTERCHANGEABLE
RETAINER,SPRING
7603
5905-00-432-7650INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
4310-00-446-3388INTERCHANGEABLE
RING,PISTON
7603
5310-00-550-1469INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3110-00-554-3355INTERCHANGEABLE
BEARING,BALL,ANNULAR
5330-00-559-2708INTERCHANGEABLE
SEAL,PLAIN ENCASED
3030-01-043-6749INTERCHANGEABLE
BELT,V
13605
5998-01-097-1317INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5998-01-128-7698INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 5360-00-526-1650?

NSN 5360-00-526-1650 is a Spring,helical,extension, manufactured by Telemechanics Inc, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-526-1650?

NSN 5360-00-526-1650 has 3 cross-referenced part numbers: 7603 (Telemechanics Inc), 7603 (Zf Industrieantriebe Witten Gmbh), 7603 (At and T Corp).

What NSN replaces 5360-00-526-1650?

There are 12 known substitutes for 5360-00-526-1650: 5935-00-258-9896, 6625-00-261-5127, 5360-00-263-4565 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7603?

Key specifications for 7603: Hook Radius: 0.062 INCHES NOMINAL BOTH ENDS IN; Spring Free Length: 0.469 INCHES NOMINAL IN; Design Type: CLOSED; End Style: SHORT TWISTED HOOK BOTH ENDS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-526-1650 still in active supply?

NSN 5360-00-526-1650 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.
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