PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB187591Spring,helical,compression

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5360-00-663-3323 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-663-3323 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-663-3323. Primary manufacturer part number: SMB187591.
Features
  • Spring,helical,compression — FSC 5360
  • Material: STEEL OVERALL
  • Coil Quantity: 2-3/4
  • Material Hardness Rating: 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
  • Spring Free Outside Diameter: 1.171 INCHES NOMINAL IN
  • Surface Treatment: PHOSPHATE OVERALL
  • Coil Helix Direction: LEFT-HAND
  • Spring Free Length: 0.500 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-663-3323, 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 10 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-663-3323
Primary Part NumberSMB187591
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
MaterialSTEEL OVERALL
Coil Quantity2-3/4
Material Hardness Rating42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
Spring Free Outside Diameter1.171 INCHES NOMINAL IN
Surface TreatmentPHOSPHATE OVERALL
Coil Helix DirectionLEFT-HAND
Spring Free Length0.500 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Inside Diameter0.953 INCHES NOMINAL IN
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5133-00-105-8831 INTERCHANGEABLE
Drill,twist
3455-00-131-62091781-0500 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5940-00-221-5090 INTERCHANGEABLE
Terminal Board
6685-00-526-4265FAXA141274 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
Wika Holding Lp
6615-00-983-102055042 INTERCHANGEABLE
End Cap
I.m.p Group Limited Div Aerospace
9340-01-023-4718 INTERCHANGEABLE
Window,observation
5935-01-230-18011223000N180-001 INTERCHANGEABLE
Connector,receptacle,electrical
Delta Electronics Manufacturing Corp Div Delta Electronics Mfg. Corp.
5996-01-293-46195504-2 INTERCHANGEABLE
Amplifier,radio Frequency
Frequency Electronics Inc
6150-01-534-141155042 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
SMB187591 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
55042 Kleinschmidt Inc (USA)
Related Parts
5133-00-105-8831INTERCHANGEABLE
DRILL,TWIST
3455-00-131-6209INTERCHANGEABLE
CUTTER,MILLING,END
1781-0500
5940-00-221-5090INTERCHANGEABLE
TERMINAL BOARD
6685-00-526-4265INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
FAXA141274
6615-00-983-1020INTERCHANGEABLE
END CAP
55042
9340-01-023-4718INTERCHANGEABLE
WINDOW,OBSERVATION
5935-01-230-1801INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1223000N180-001
5996-01-293-4619INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
5504-2
6150-01-534-1411INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
55042

Frequently Asked Questions

What is NSN 5360-00-663-3323?

NSN 5360-00-663-3323 is a Spring,helical,compression, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-663-3323?

NSN 5360-00-663-3323 has 2 cross-referenced part numbers: SMB187591 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 55042 (Kleinschmidt Inc).

What NSN replaces 5360-00-663-3323?

There are 9 known substitutes for 5360-00-663-3323: 5133-00-105-8831, 3455-00-131-6209, 5940-00-221-5090 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB187591?

Key specifications for SMB187591: Material: STEEL OVERALL; Coil Quantity: 2-3/4; Material Hardness Rating: 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM; Spring Free Outside Diameter: 1.171 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-663-3323 still in active supply?

NSN 5360-00-663-3323 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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