PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04959Seat,helical Compression Spring

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 5340-00-036-1661 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-036-1661 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-036-1661. Primary manufacturer part number: 04959.
Features
  • Seat,helical Compression Spring — FSC 5340
  • End Diameter: 0.5230 INCHES NOMINAL IN
  • Distance From End to First Step: 0.2000 INCHES NOMINAL IN
  • Design Type: SOLID
  • Material: STEEL
  • First Step Diameter: 1.3110 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-036-1661, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-036-1661
Primary Part Number04959
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
End Diameter0.5230 INCHES NOMINAL IN
Distance From End to First Step0.2000 INCHES NOMINAL IN
Design TypeSOLID
MaterialSTEEL
First Step Diameter1.3110 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 10
No Item Name Available
5915-00-069-2712SM-C-563335-9 INTERCHANGEABLE
Filter,band Pass
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3120-00-148-2088 INTERCHANGEABLE
Bushing,sleeve
6625-00-255-58144959-115V INTERCHANGEABLE
Meter,electrical Frequency
Avo Intl
6625-00-669-07394959 INTERCHANGEABLE
Meter,electrical Frequency
Avo Intl
8115-00-774-65624959 INTERCHANGEABLE
Box,shipping
Loye Keesee Dba Keesee Box Company Div Government Resource Pkg Prod
1680-00-858-45014959 INTERCHANGEABLE
Arm,fore and Aft Co
Lockheed Martin Corp
5950-00-891-4087722801-58 INTERCHANGEABLE
Transformer,power
Raytheon Company Div Rmd Strategic
1270-00-898-1261 INTERCHANGEABLE
Modulator,magnetic
3950-01-147-29994959 INTERCHANGEABLE
Output Shaft
Ingersoll-Rand Co Material Handling Div
Cross-Reference Index
Part NumberManufacturer
4959 Lineta Engineering Und Handelsgesell-Schaft Mbh (DEU)
24166N PIECE 8 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
04959 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
4959 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5340-01-296-1659SUCCESSOR
NO ITEM NAME AVAILABLE
5915-00-069-2712INTERCHANGEABLE
FILTER,BAND PASS
SM-C-563335-9
3120-00-148-2088INTERCHANGEABLE
BUSHING,SLEEVE
6625-00-255-5814INTERCHANGEABLE
METER,ELECTRICAL FREQUENCY
4959-115V
6625-00-669-0739INTERCHANGEABLE
METER,ELECTRICAL FREQUENCY
4959
8115-00-774-6562INTERCHANGEABLE
BOX,SHIPPING
4959
1680-00-858-4501INTERCHANGEABLE
ARM,FORE AND AFT CO
4959
5950-00-891-4087INTERCHANGEABLE
TRANSFORMER,POWER
722801-58
1270-00-898-1261INTERCHANGEABLE
MODULATOR,MAGNETIC
3950-01-147-2999INTERCHANGEABLE
OUTPUT SHAFT
4959

Frequently Asked Questions

What is NSN 5340-00-036-1661?

NSN 5340-00-036-1661 is a Seat,helical Compression Spring, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-036-1661?

NSN 5340-00-036-1661 has 4 cross-referenced part numbers: 4959 (Lineta Engineering Und Handelsgesell-Schaft Mbh), 24166N PIECE 8 (Leslie Controls, Inc. Dba Leslie Controls Inc), 04959 (Leslie Controls, Inc. Dba Leslie Controls Inc), 4959 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 5340-00-036-1661?

There are 10 known substitutes for 5340-00-036-1661: 5340-01-296-1659, 5915-00-069-2712, 3120-00-148-2088 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 04959?

Key specifications for 04959: End Diameter: 0.5230 INCHES NOMINAL IN; Distance From End to First Step: 0.2000 INCHES NOMINAL IN; Special Features: W/O CENTER BORE,HEAD SLIGHTLY CONVEX; Design Type: SOLID. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-036-1661 still in active supply?

NSN 5340-00-036-1661 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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