PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

146373PC47Washer,flat

Naval Sea Systems Command · NSN 5310-00-274-8768 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-8768 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-8768. Primary manufacturer part number: 146373PC47.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material: STEEL COMP 430 OVERALL
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.312 INCHES NOMINAL IN
  • Hole Diameter: 0.128 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 430 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-274-8768, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5310-00-274-8768
Primary Part Number146373PC47
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusCANCELLED
Center Hole Shape StyleROUND
MaterialSTEEL COMP 430 OVERALL
Peripheral Shape StyleROUND
Overall Diameter0.312 INCHES NOMINAL IN
Hole Diameter0.128 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Thickness0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-107-0270MS9321-05 INTERCHANGEABLE
Washer,flat
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
5310PL0150185 Jednolity Indeks Materialowy - Uniform Material Index (POL)
146373PC47 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
146374PC47 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
934A853P1 General Electric Company (USA)
146374PC3 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MS9321-05 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
10121232 Nimikkeistokeskus Ncb Finland (FIN)
146373PC47 PRIMARY Naval Sea Systems Command (USA)
Related Parts
5310-00-107-0270INTERCHANGEABLE
WASHER,FLAT
MS9321-05

Frequently Asked Questions

What is NSN 5310-00-274-8768?

NSN 5310-00-274-8768 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-274-8768?

NSN 5310-00-274-8768 has 8 cross-referenced part numbers: 5310PL0150185 (Jednolity Indeks Materialowy - Uniform Material Index), 146373PC47 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 146374PC47 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 934A853P1 (General Electric Company), 146374PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 3 more.

What NSN replaces 5310-00-274-8768?

There is 1 known substitute for 5310-00-274-8768: 5310-00-107-0270. Verify interchangeability with system specifications before substitution.

What are the specifications of 146373PC47?

Key specifications for 146373PC47: Center Hole Shape Style: ROUND; Material: STEEL COMP 430 OVERALL; Peripheral Shape Style: ROUND; Overall Diameter: 0.312 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-274-8768 still in active supply?

NSN 5310-00-274-8768 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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