PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-457-3Spring,helical,compression

Automatic Switch Company Dba Asco · NSN 5360-00-260-4129 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-260-4129 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-260-4129. Primary manufacturer part number: 18-457-3.
Features
  • Spring,helical,compression — FSC 5360
  • Spring Solid Length: 0.500 INCHES MAXIMUM IN
  • Inside Diameter: 0.4044 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Spring Free Outside Diameter: 0.485 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Style Designator: CYLINDRICAL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-260-4129, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-260-4129
Primary Part Number18-457-3
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerAutomatic Switch Company Dba Asco
StatusACTIVE
Spring Solid Length0.500 INCHES MAXIMUM IN
Inside Diameter0.4044 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Spring Free Outside Diameter0.485 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Style DesignatorCYLINDRICAL
Spring Free Length0.781 INCHES NOMINAL IN
Coil Quantity6-1/2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-508-08042H1118 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5950-00-645-792216449 INTERCHANGEABLE
Coil,electrical
Prestolite Electric Inc
2990-00-878-077616449 INTERCHANGEABLE
Retainer Assembly,governor Weigh
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5305-00-925-4781MS35275-220 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5330-01-147-127016-449 INTERCHANGEABLE
Gasket
Rix Industries
3120-01-208-540616449 INTERCHANGEABLE
Bushing,sleeve
Air & Liquid Systems Corporation Dba Buffalo Pumps
4730-01-228-751916449 INTERCHANGEABLE
Fitting,lubrication
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
4210-01-286-977016449 INTERCHANGEABLE
Nozzle,fire Equipment
Tyco Fire Products Lp
4730-01-350-3743016449 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Caterpillar Inc Div Caterpillar Defense
3040-01-358-859616449 INTERCHANGEABLE
Shaft,straight
New Venture Gear Inc New Process Gear Div
Cross-Reference Index
Part NumberManufacturer
18-457-3 PRIMARY Automatic Switch Company Dba Asco (USA)
FS16-454-2RPCBS16-449 Automatic Switch Company Dba Asco (USA)
FS16-454-2RPCBS16-449 Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated (USA)
16-449 Automatic Switch Company Dba Asco (USA)
BS16-449 Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated (USA)
18-457R6PC18-457-3 Automatic Switch Company Dba Asco (USA)
BS16-449 Automatic Switch Company Dba Asco (USA)
Related Parts
5330-00-508-0804INTERCHANGEABLE
GASKET
2H1118
5950-00-645-7922INTERCHANGEABLE
COIL,ELECTRICAL
16449
2990-00-878-0776INTERCHANGEABLE
RETAINER ASSEMBLY,GOVERNOR WEIGH
16449
5305-00-925-4781INTERCHANGEABLE
SCREW,MACHINE
MS35275-220
5330-01-147-1270INTERCHANGEABLE
GASKET
16-449
3120-01-208-5406INTERCHANGEABLE
BUSHING,SLEEVE
16449
4730-01-228-7519INTERCHANGEABLE
FITTING,LUBRICATION
16449
4210-01-286-9770INTERCHANGEABLE
NOZZLE,FIRE EQUIPMENT
16449
4730-01-350-3743INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
016449
3040-01-358-8596INTERCHANGEABLE
SHAFT,STRAIGHT
16449
6515-01-591-5898INTERCHANGEABLE
BLADE,BONE SAW,POWER
05.002.306S

Frequently Asked Questions

What is NSN 5360-00-260-4129?

NSN 5360-00-260-4129 is a Spring,helical,compression, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-260-4129?

NSN 5360-00-260-4129 has 7 cross-referenced part numbers: 18-457-3 (Automatic Switch Company Dba Asco), FS16-454-2RPCBS16-449 (Automatic Switch Company Dba Asco), FS16-454-2RPCBS16-449 (Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated), 16-449 (Automatic Switch Company Dba Asco), BS16-449 (Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated) and 2 more.

What NSN replaces 5360-00-260-4129?

There are 11 known substitutes for 5360-00-260-4129: 5330-00-508-0804, 5950-00-645-7922, 2990-00-878-0776 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-457-3?

Key specifications for 18-457-3: Spring Solid Length: 0.500 INCHES MAXIMUM IN; Inside Diameter: 0.4044 INCHES NOMINAL IN; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Spring Free Outside Diameter: 0.485 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

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