PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1537RSeat,helical Compression Spring

P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc. · NSN 5340-00-777-7189 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-777-7189 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-777-7189. Primary manufacturer part number: 1537R.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Design Type: SOLID
  • Distance From End to First Step: 0.2180 INCHES NOMINAL IN
  • FSC Application Data: COMPRESSOR VALVE SPRING SEAT
  • Features Provided: CASEHARDENED
  • Style Designator: SEAT
  • End Diameter: 0.5400 INCHES MINIMUM AND 0.5500 INCHES MAXIMUM IN
  • Material: STEEL
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 5340-00-777-7189, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-777-7189
Primary Part Number1537R
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerP.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc.
StatusACTIVE
Design TypeSOLID
Distance From End to First Step0.2180 INCHES NOMINAL IN
FSC Application DataCOMPRESSOR VALVE SPRING SEAT
Features ProvidedCASEHARDENED
Style DesignatorSEAT
End Diameter0.5400 INCHES MINIMUM AND 0.5500 INCHES MAXIMUM IN
MaterialSTEEL
First Step Diameter0.6870 INCHES NOMINAL IN
Bore Diameter0.4480 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
2530-00-119-99280A-08709-20-SW-SP INTERCHANGEABLE
Wheel,solid Rubber Tire
Albion Industries, Inc.
5965-00-280-966249104B INTERCHANGEABLE
Cushion,ear
Naval Ship Systems Command
5310-00-282-57141537 INTERCHANGEABLE
Nut,plain,hexagon
Clayton Hill Greenhouse Co Div Timothy Hill
5935-00-283-2056119582 INTERCHANGEABLE
Connector,receptacle,electrical
Bryant Electric
4320-00-420-68441537 INTERCHANGEABLE
Guard,valve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4310-00-449-40041537US INTERCHANGEABLE
Crankshaft,compressor
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
1650-00-512-1499 INTERCHANGEABLE
Cylinder,actuating,linear
5910-00-892-91938193028 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Us Army Aviation and Missile Command
2920-00-893-1309A8784 INTERCHANGEABLE
Switch,engine Starter,electrical
Stewart Avionics Inc
4730-01-004-83461537 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Danfoss Power Solutions II, Llc
Cross-Reference Index
Part NumberManufacturer
1537R P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc. (USA)
1537 P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc. (USA)
Related Parts
2530-00-119-9928INTERCHANGEABLE
WHEEL,SOLID RUBBER TIRE
0A-08709-20-SW-SP
5965-00-280-9662INTERCHANGEABLE
CUSHION,EAR
49104B
5310-00-282-5714INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1537
5935-00-283-2056INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
119582
4320-00-420-6844INTERCHANGEABLE
GUARD,VALVE
1537
4310-00-449-4004INTERCHANGEABLE
CRANKSHAFT,COMPRESSOR
1537US
1650-00-512-1499INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
5910-00-892-9193INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
8193028
2920-00-893-1309INTERCHANGEABLE
SWITCH,ENGINE STARTER,ELECTRICAL
A8784
4730-01-004-8346INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
1537
4920-01-026-2031INTERCHANGEABLE
SWITCH DRIVER
1537-1
5305-01-084-3338INTERCHANGEABLE
SCREW

Frequently Asked Questions

What is NSN 5340-00-777-7189?

NSN 5340-00-777-7189 is a Seat,helical Compression Spring, manufactured by P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-777-7189?

NSN 5340-00-777-7189 has 2 cross-referenced part numbers: 1537R (P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc.), 1537 (P.k. Lindsay Co., Inc. Dba P.k. Lindsay Co., Inc.).

What NSN replaces 5340-00-777-7189?

There are 12 known substitutes for 5340-00-777-7189: 2530-00-119-9928, 5965-00-280-9662, 5310-00-282-5714 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1537R?

Key specifications for 1537R: Design Type: SOLID; Distance From End to First Step: 0.2180 INCHES NOMINAL IN; FSC Application Data: COMPRESSOR VALVE SPRING SEAT; Features Provided: CASEHARDENED. 10 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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