PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS171726Pin,spring

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5315-01-243-9561 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-01-243-9561 — this item is cataloged by the U.S. Government under National Stock Number 5315-01-243-9561. Primary manufacturer part number: MS171726.
Features
  • Pin,spring — FSC 5315
  • Style Designator: SLOTTED
  • Material: STEEL COMP 420 OVERALL
  • Material Document and Classification: AMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material Thickness: 0.077 INCHES NOMINAL IN
  • Diameter: 0.375 INCHES NOMINAL IN
  • Surface Finish: 80.0 MICROINCHES OUTSIDE DIAMETER
  • Hardness Rating: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 420 Overall construction
General Description

The Pin,spring, cataloged under National Stock Number 5315-01-243-9561, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5315-01-243-9561
Primary Part NumberMS171726
Item NamePin,spring
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Style DesignatorSLOTTED
MaterialSTEEL COMP 420 OVERALL
Material Document and ClassificationAMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Material Thickness0.077 INCHES NOMINAL IN
Diameter0.375 INCHES NOMINAL IN
Surface Finish80.0 MICROINCHES OUTSIDE DIAMETER
Hardness Rating83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5940-00-905-5016 INTERCHANGEABLE
Terminal,stud
Cross-Reference Index
Part NumberManufacturer
MS171726 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS9047-306 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS17126 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS171726 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5940-00-905-5016INTERCHANGEABLE
TERMINAL,STUD

Frequently Asked Questions

What is NSN 5315-01-243-9561?

NSN 5315-01-243-9561 is a Pin,spring, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5315 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5315-01-243-9561?

NSN 5315-01-243-9561 has 4 cross-referenced part numbers: MS171726 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS9047-306 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS17126 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS171726 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5315-01-243-9561?

There is 1 known substitute for 5315-01-243-9561: 5940-00-905-5016. Verify interchangeability with system specifications before substitution.

What are the specifications of MS171726?

Key specifications for MS171726: Style Designator: SLOTTED; Overall Length: 2.975 INCHES MINIMUM AND 3.025 INCHES MAXIMUM IN; Material: STEEL COMP 420 OVERALL; Material Document and Classification: AMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5315-01-243-9561 still in active supply?

NSN 5315-01-243-9561 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.
PartsTable Design LLC · partstable.com