PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51923-132Pin,spring

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5315-00-176-6821 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-176-6821 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-176-6821. Primary manufacturer part number: MS51923-132.
Features
  • Pin,spring — FSC 5315
  • Diameter: 0.046 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Style Designator: COILED
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Expanded Diameter: 0.049 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
  • 5 verified cross-references
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Pin,spring, cataloged under National Stock Number 5315-00-176-6821, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5315-00-176-6821
Primary Part NumberMS51923-132
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
StatusACTIVE
Diameter0.046 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Style DesignatorCOILED
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Expanded Diameter0.049 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3020-00-027-5651512923 INTERCHANGEABLE
Gear,spur
Honeywell International, Inc Div Aerospace-Tucson
5905-00-962-0538 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Cross-Reference Index
Part NumberManufacturer
512923 Dynapar Corp Div Specialty Product Technologies (USA)
MS51923-132 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51923-132 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
046-0312MDP Spirol International Corporation (USA)
512923-001 Dynapar Corp Div Specialty Product Technologies (USA)
Related Parts
3020-00-027-5651INTERCHANGEABLE
GEAR,SPUR
512923
5905-00-962-0538INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON

Frequently Asked Questions

What is NSN 5315-00-176-6821?

NSN 5315-00-176-6821 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: active.

What are the part numbers for NSN 5315-00-176-6821?

NSN 5315-00-176-6821 has 5 cross-referenced part numbers: 512923 (Dynapar Corp Div Specialty Product Technologies), MS51923-132 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51923-132 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 046-0312MDP (Spirol International Corporation), 512923-001 (Dynapar Corp Div Specialty Product Technologies).

What NSN replaces 5315-00-176-6821?

There are 2 known substitutes for 5315-00-176-6821: 3020-00-027-5651, 5905-00-962-0538. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51923-132?

Key specifications for MS51923-132: Diameter: 0.046 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL; Style Designator: COILED; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 7 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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