PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB186875-9Spring,helical,extension

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5360-00-576-3880 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-576-3880 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-576-3880. Primary manufacturer part number: SMB186875-9.
Features
  • Spring,helical,extension — FSC 5360
  • Surface Treatment: TIN OVERALL
  • Spring Length Under Load: 4.000 INCHES NOMINAL IN
  • End Style: SHORT TWISTED HOOK BOTH ENDS
  • Design Type: CLOSED
  • Spring Free Length: 2.915 INCHES NOMINAL IN
  • Load Rating: 0.938 POUNDS NOMINAL LBS
  • 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 5360-00-576-3880, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-576-3880
Primary Part NumberSMB186875-9
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Surface TreatmentTIN OVERALL
Spring Length Under Load4.000 INCHES NOMINAL IN
End StyleSHORT TWISTED HOOK BOTH ENDS
Design TypeCLOSED
Spring Free Length2.915 INCHES NOMINAL IN
Load Rating0.938 POUNDS NOMINAL LBS
Style DesignatorCYLINDRICAL
Spring Free Outside Diameter0.250 INCHES NOMINAL IN
Inside Diameter0.210 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND
Hook Radius0.105 INCHES NOMINAL BOTH ENDS IN
Coil Quantity118
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-187-29624981106-0 INTERCHANGEABLE
Gasket
Kalmar AC Inc
5360-00-353-256411B1257 INTERCHANGEABLE
Spring,helical,extension
Napco International Llc Dba Napco International Inc
3120-00-483-632756109 INTERCHANGEABLE
Bearing,sleeve
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
SMB186875-9 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
56109 Kleinschmidt Inc (USA)
Related Parts
5330-00-187-2962INTERCHANGEABLE
GASKET
4981106-0
5360-00-353-2564INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
11B1257
3120-00-483-6327INTERCHANGEABLE
BEARING,SLEEVE
56109

Frequently Asked Questions

What is NSN 5360-00-576-3880?

NSN 5360-00-576-3880 is a Spring,helical,extension, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-576-3880?

NSN 5360-00-576-3880 has 2 cross-referenced part numbers: SMB186875-9 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 56109 (Kleinschmidt Inc).

What NSN replaces 5360-00-576-3880?

There are 3 known substitutes for 5360-00-576-3880: 5330-00-187-2962, 5360-00-353-2564, 3120-00-483-6327. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB186875-9?

Key specifications for SMB186875-9: Surface Treatment: TIN OVERALL; Spring Length Under Load: 4.000 INCHES NOMINAL IN; End Style: SHORT TWISTED HOOK BOTH ENDS; Design Type: CLOSED. 13 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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