PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS171646Pin,spring

Harvard Industries Inc · NSN 5315-00-153-8271 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-153-8271 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-153-8271. Primary manufacturer part number: MS171646.
Features
  • Pin,spring — FSC 5315
  • Material Thickness: 0.048 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Diameter: 0.250 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: SLOTTED
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Pin,spring, cataloged under National Stock Number 5315-00-153-8271, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harvard Industries Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-00-153-8271
Primary Part NumberMS171646
Item NamePin,spring
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerHarvard Industries Inc
StatusACTIVE
Material Thickness0.048 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorSLOTTED
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Hardness Rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-00-598-6435 INTERCHANGEABLE
Pin,spring
5315-00-682-1777MS16562-254 INTERCHANGEABLE
Pin,spring
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS171646 Harvard Industries Inc (USA)
DY-131548IT7-10 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
820-5348016-7.10 Naval Sea Systems Command (USA)
MS171646 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
DY-131548IT7-10 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
820-4446005 ITM. 1.15 AND 7.6 Naval Sea Systems Command (USA)
79-048-250-0500 Harvard Industries Inc (USA)
Related Parts
5315-00-598-6435INTERCHANGEABLE
PIN,SPRING
5315-00-682-1777INTERCHANGEABLE
PIN,SPRING
MS16562-254

Frequently Asked Questions

What is NSN 5315-00-153-8271?

NSN 5315-00-153-8271 is a Pin,spring, manufactured by Harvard Industries Inc, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-153-8271?

NSN 5315-00-153-8271 has 7 cross-referenced part numbers: MS171646 (Harvard Industries Inc), DY-131548IT7-10 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 820-5348016-7.10 (Naval Sea Systems Command), MS171646 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), DY-131548IT7-10 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 2 more.

What NSN replaces 5315-00-153-8271?

There are 2 known substitutes for 5315-00-153-8271: 5315-00-598-6435, 5315-00-682-1777. Verify interchangeability with system specifications before substitution.

What are the specifications of MS171646?

Key specifications for MS171646: Material Thickness: 0.048 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL; Overall Length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Diameter: 0.250 INCHES NOMINAL IN. 8 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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