PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11A8527Spring,helical,extension

Napco International Llc Dba Napco International Inc · NSN 5360-00-205-4671 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-205-4671 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-205-4671. Primary manufacturer part number: 11A8527.
Features
  • Spring,helical,extension — FSC 5360
  • Hook Radius: 0.250 INCHES NOMINAL BOTH ENDS IN
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 1.000 INCHES NOMINAL IN
  • Spring Free Length: 9.042 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • End Style: RAISED HOOK BOTH ENDS
  • Opening Width: 2.000 INCHES NOMINAL BOTH ENDS IN
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 5360-00-205-4671, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-205-4671
Primary Part Number11A8527
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusCANCELLED
Hook Radius0.250 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL OVERALL
Spring Free Outside Diameter1.000 INCHES NOMINAL IN
Spring Free Length9.042 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
End StyleRAISED HOOK BOTH ENDS
Opening Width2.000 INCHES NOMINAL BOTH ENDS IN
Design TypeCLOSED
Spring Length Under Load8.750 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Load Rating75.000 POUNDS MINIMUM AND 85.000 POUNDS MAXIMUM LBS
Inside Diameter0.808 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-720-50025228623-1 INTERCHANGEABLE
Reducer,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
2840-00-764-5748536213 INTERCHANGEABLE
Lock,compressor Blade,aircraft G
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
3040-00-909-8033327-634 INTERCHANGEABLE
Cam,control
Cmc Electronics Inc
4820-01-331-269883937 INTERCHANGEABLE
Stem,fluid Valve
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
5999-01-492-70892052-02 INTERCHANGEABLE
Cooler,air,electronic Equipment
Rotron Incorporated
Cross-Reference Index
Part NumberManufacturer
F2208 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
6CFC2208 Fwd Seagrave Holdings Lp (USA)
221M1 Diamond Reo Truck Co (USA)
12EHW22 Mack Trucks Inc Parts Opn (USA)
V2870X White Motor Corp (USA)
9SD0134 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
536213 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
F2208D Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
11A8527 PRIMARY Napco International Llc Dba Napco International Inc (USA)
182202 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
2858-B-28 Zf Industrieantriebe Witten Gmbh (DEU)
327634 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
FC2208D Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
5214972 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
401354 Zf Industrieantriebe Witten Gmbh (DEU)
FC2208 Diamond Reo Truck Co (USA)
FC2208 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
2858B28 Meritor Industrial Products, Llc (USA)
2858B28 Meritor Heavy Vehicle Systems, Llc (USA)
327634 White Motor Corp (USA)
Related Parts
4730-00-720-5002INTERCHANGEABLE
REDUCER,PIPE
5228623-1
2840-00-764-5748INTERCHANGEABLE
LOCK,COMPRESSOR BLADE,AIRCRAFT G
536213
3040-00-909-8033INTERCHANGEABLE
CAM,CONTROL
327-634
4820-01-331-2698INTERCHANGEABLE
STEM,FLUID VALVE
83937
5999-01-492-7089INTERCHANGEABLE
COOLER,AIR,ELECTRONIC EQUIPMENT
2052-02

Frequently Asked Questions

What is NSN 5360-00-205-4671?

NSN 5360-00-205-4671 is a Spring,helical,extension, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-205-4671?

NSN 5360-00-205-4671 has 21 cross-referenced part numbers: F2208 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), 6CFC2208 (Fwd Seagrave Holdings Lp), 221M1 (Diamond Reo Truck Co), 12EHW22 (Mack Trucks Inc Parts Opn), V2870X (White Motor Corp) and 16 more.

What NSN replaces 5360-00-205-4671?

There are 5 known substitutes for 5360-00-205-4671: 4730-00-720-5002, 2840-00-764-5748, 3040-00-909-8033 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11A8527?

Key specifications for 11A8527: Hook Radius: 0.250 INCHES NOMINAL BOTH ENDS IN; Material: STEEL OVERALL; Spring Free Outside Diameter: 1.000 INCHES NOMINAL IN; Spring Free Length: 9.042 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-205-4671 still in active supply?

NSN 5360-00-205-4671 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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