PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

390012PC299Washer,flat

Naval Ship Systems Command · NSN 5310-00-197-5326 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-197-5326 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-197-5326. Primary manufacturer part number: 390012PC299.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.875 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thickness: 0.031 INCHES NOMINAL IN
  • Overall Diameter: 1.375 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-197-5326, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-197-5326
Primary Part Number390012PC299
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Hole Diameter0.875 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thickness0.031 INCHES NOMINAL IN
Overall Diameter1.375 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2030-00-190-8059 INTERCHANGEABLE
Steering Assembly
5950-00-323-16797409925P1 INTERCHANGEABLE
Transformer,power
General Electric Company
5985-01-020-1129MSM-2029-25-009-07 INTERCHANGEABLE
Dummy Load,electrical
Cinch Connectivity Solutions Inc
5306-01-069-921420299 INTERCHANGEABLE
Bolt
Silver King Refrigeration Inc.
5962-01-170-234220299 INTERCHANGEABLE
Microcircuit,digital
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5998-01-196-859320299 INTERCHANGEABLE
Printed Circuit Board
Coda Octopus Engineering, Inc.
6632-01-690-577620299 INTERCHANGEABLE
Analyzer,clinical Chemistry
Quidel Corp
Cross-Reference Index
Part NumberManufacturer
390012PC299 PRIMARY Naval Ship Systems Command (USA)
20-299 Hardie-Tynes Co., Inc. (USA)
150-435GPC299 Hardie-Tynes Co., Inc. (USA)
Related Parts
2030-00-190-8059INTERCHANGEABLE
STEERING ASSEMBLY
5950-00-323-1679INTERCHANGEABLE
TRANSFORMER,POWER
7409925P1
5985-01-020-1129INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
MSM-2029-25-009-07
5306-01-069-9214INTERCHANGEABLE
BOLT
20299
5962-01-170-2342INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
20299
5998-01-196-8593INTERCHANGEABLE
PRINTED CIRCUIT BOARD
20299
6632-01-690-5776INTERCHANGEABLE
ANALYZER,CLINICAL CHEMISTRY
20299

Frequently Asked Questions

What is NSN 5310-00-197-5326?

NSN 5310-00-197-5326 is a Washer,flat, manufactured by Naval Ship Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-197-5326?

NSN 5310-00-197-5326 has 3 cross-referenced part numbers: 390012PC299 (Naval Ship Systems Command), 20-299 (Hardie-Tynes Co., Inc.), 150-435GPC299 (Hardie-Tynes Co., Inc.).

What NSN replaces 5310-00-197-5326?

There are 7 known substitutes for 5310-00-197-5326: 2030-00-190-8059, 5950-00-323-1679, 5985-01-020-1129 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 390012PC299?

Key specifications for 390012PC299: Hole Diameter: 0.875 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thickness: 0.031 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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