PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30746ASpring,helical,extension

Komatsu America Corporation · NSN 5360-00-253-2928 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-253-2928 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-253-2928. Primary manufacturer part number: 30746A.
Features
  • Spring,helical,extension — FSC 5360
  • Inside Diameter: 0.688 INCHES NOMINAL IN
  • Hook Radius: 0.344 INCHES NOMINAL BOTH ENDS IN
  • End Style: SHORT TWISTED HOOK BOTH ENDS
  • Spring Free Length: 7.500 INCHES NOMINAL IN
  • Opening Width: 0.625 INCHES NOMINAL BOTH ENDS IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • 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 5360-00-253-2928, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Komatsu America Corporation. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-253-2928
Primary Part Number30746A
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerKomatsu America Corporation
StatusACTIVE
Inside Diameter0.688 INCHES NOMINAL IN
Hook Radius0.344 INCHES NOMINAL BOTH ENDS IN
End StyleSHORT TWISTED HOOK BOTH ENDS
Spring Free Length7.500 INCHES NOMINAL IN
Opening Width0.625 INCHES NOMINAL BOTH ENDS IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Style DesignatorCYLINDRICAL
MaterialSTEEL OVERALL
Design TypeCLOSED
Spring Free Outside Diameter0.938 INCHES NOMINAL IN
Coil Quantity48
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-288-9490110-3 INTERCHANGEABLE
Tee,pipe to Tube
Crane Carrier Company, Llc
5330-00-591-2104 INTERCHANGEABLE
Gasket
5330-00-777-5105 INTERCHANGEABLE
Gasket
5330-01-083-871330746A INTERCHANGEABLE
Packing,preformed
Dressta North America Ltd
9340-01-264-2599D552 INTERCHANGEABLE
Window,observation
The Dewey Electronics Corporation Div Pitometer Log Division
Cross-Reference Index
Part NumberManufacturer
552 Dressta North America Ltd (USA)
D30746 Komatsu America Corporation (USA)
552 Komatsu America Corporation (USA)
D552 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
30746 Komatsu America Corporation (USA)
30746A PRIMARY Komatsu America Corporation (USA)
D552 Komatsu America Corporation (USA)
Related Parts
4730-00-288-9490INTERCHANGEABLE
TEE,PIPE TO TUBE
110-3
5330-00-591-2104INTERCHANGEABLE
GASKET
5330-00-777-5105INTERCHANGEABLE
GASKET
5330-01-083-8713INTERCHANGEABLE
PACKING,PREFORMED
30746A
9340-01-264-2599INTERCHANGEABLE
WINDOW,OBSERVATION
D552

Frequently Asked Questions

What is NSN 5360-00-253-2928?

NSN 5360-00-253-2928 is a Spring,helical,extension, manufactured by Komatsu America Corporation, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-253-2928?

NSN 5360-00-253-2928 has 7 cross-referenced part numbers: 552 (Dressta North America Ltd), D30746 (Komatsu America Corporation), 552 (Komatsu America Corporation), D552 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), 30746 (Komatsu America Corporation) and 2 more.

What NSN replaces 5360-00-253-2928?

There are 5 known substitutes for 5360-00-253-2928: 4730-00-288-9490, 5330-00-591-2104, 5330-00-777-5105 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30746A?

Key specifications for 30746A: Inside Diameter: 0.688 INCHES NOMINAL IN; Hook Radius: 0.344 INCHES NOMINAL BOTH ENDS IN; End Style: SHORT TWISTED HOOK BOTH ENDS; Spring Free Length: 7.500 INCHES NOMINAL IN. 11 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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