PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

185761Seat,helical Compression Spring

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5340-00-396-4612 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-396-4612 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-396-4612. Primary manufacturer part number: 185761.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Design Type: SOLID
  • Distance From End to First Step: 0.7500 INCHES NOMINAL IN
  • Style Designator: SEAT
  • End Diameter: 0.2300 INCHES NOMINAL IN
  • Material: STEEL
  • Bore Diameter: 0.1250 INCHES NOMINAL IN
  • First Step Diameter: 0.7480 INCHES NOMINAL IN
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 5340-00-396-4612, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-396-4612
Primary Part Number185761
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Design TypeSOLID
Distance From End to First Step0.7500 INCHES NOMINAL IN
Style DesignatorSEAT
End Diameter0.2300 INCHES NOMINAL IN
MaterialSTEEL
Bore Diameter0.1250 INCHES NOMINAL IN
First Step Diameter0.7480 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
4460-01-198-95921001330-003 INTERCHANGEABLE
Filter,air,electrostatic
Falls Filtration Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
185761 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
4460-01-198-9592INTERCHANGEABLE
FILTER,AIR,ELECTROSTATIC
1001330-003

Frequently Asked Questions

What is NSN 5340-00-396-4612?

NSN 5340-00-396-4612 is a Seat,helical Compression Spring, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-396-4612?

NSN 5340-00-396-4612 has 1 cross-referenced part number: 185761 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5340-00-396-4612?

There is 1 known substitute for 5340-00-396-4612: 4460-01-198-9592. Verify interchangeability with system specifications before substitution.

What are the specifications of 185761?

Key specifications for 185761: Design Type: SOLID; Distance From End to First Step: 0.7500 INCHES NOMINAL IN; Style Designator: SEAT; End Diameter: 0.2300 INCHES NOMINAL IN. 8 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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