PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51222Spring,helical,compression

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5360-00-526-9723 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-526-9723 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-526-9723. Primary manufacturer part number: 51222.
Features
  • Spring,helical,compression — FSC 5360
  • Style Designator: CYLINDRICAL
  • Accommodated Rod Diameter: 1.750 INCHES NOMINAL IN
  • Spring Free Length: 2.906 INCHES NOMINAL IN
  • Coil Quantity: 5
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 1.875 INCHES NOMINAL IN
  • Inside Diameter: 1.751 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 5360-00-526-9723, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-526-9723
Primary Part Number51222
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Style DesignatorCYLINDRICAL
Accommodated Rod Diameter1.750 INCHES NOMINAL IN
Spring Free Length2.906 INCHES NOMINAL IN
Coil Quantity5
MaterialSTEEL OVERALL
Spring Free Outside Diameter1.875 INCHES NOMINAL IN
Inside Diameter1.751 INCHES NOMINAL IN
Material Document and ClassificationQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Coil Helix DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4320-00-113-95245122230 INTERCHANGEABLE
Pump,rotary
Rolls-Royce Solutions America Inc
9540-00-148-4327 INTERCHANGEABLE
Angle,structural
5120-00-240-529213807 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
5950-00-444-6516 INTERCHANGEABLE
Transformer,power
5950-00-864-4663617226-9 INTERCHANGEABLE
Transformer,power Autotransforme
Lockheed Martin Corp
8010-01-364-05115122-2 INTERCHANGEABLE
Primer Coating
L3harris Technologies, Inc. Div Space and Airborne Systems
6515-01-523-099851222 INTERCHANGEABLE
Thermometer,clinical,human
Medical Indicators Inc
4820-01-606-079051222 INTERCHANGEABLE
Valve,flow Control
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
51222 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
4320-00-113-9524INTERCHANGEABLE
PUMP,ROTARY
5122230
9540-00-148-4327INTERCHANGEABLE
ANGLE,STRUCTURAL
5120-00-240-5292INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13807
5950-00-444-6516INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-864-4663INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
617226-9
8010-01-364-0511INTERCHANGEABLE
PRIMER COATING
5122-2
6515-01-523-0998INTERCHANGEABLE
THERMOMETER,CLINICAL,HUMAN
51222
4820-01-606-0790INTERCHANGEABLE
VALVE,FLOW CONTROL
51222

Frequently Asked Questions

What is NSN 5360-00-526-9723?

NSN 5360-00-526-9723 is a Spring,helical,compression, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-526-9723?

NSN 5360-00-526-9723 has 1 cross-referenced part number: 51222 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5360-00-526-9723?

There are 8 known substitutes for 5360-00-526-9723: 4320-00-113-9524, 9540-00-148-4327, 5120-00-240-5292 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51222?

Key specifications for 51222: Style Designator: CYLINDRICAL; Accommodated Rod Diameter: 1.750 INCHES NOMINAL IN; Spring Free Length: 2.906 INCHES NOMINAL IN; Coil Quantity: 5. 10 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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