PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P326Washer,flat

Cooper Cameron Corp Ajax-Superior Div · NSN 5310-00-203-8970 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-203-8970 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-203-8970. Primary manufacturer part number: P326.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.870 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 1.484 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
  • Thickness: 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
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 5310-00-203-8970, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cooper Cameron Corp Ajax-Superior Div. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-203-8970
Primary Part NumberP326
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCooper Cameron Corp Ajax-Superior Div
StatusACTIVE
Hole Diameter0.870 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Overall Diameter1.484 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Thickness0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6675-00-190-5278 INTERCHANGEABLE
Protractor,semicircular
3030-00-529-0479 INTERCHANGEABLE
Belt,v
5120-00-541-6732 INTERCHANGEABLE
Pliers
5330-00-928-1819P326 INTERCHANGEABLE
Gasket
Marvel Engineering Company Inc
3465-01-133-5497P-32-6 INTERCHANGEABLE
Bushing,drill,jig
Carr Lane Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
P326 Cooper Cameron Corp Ajax-Superior Div (USA)
Related Parts
6675-00-190-5278INTERCHANGEABLE
PROTRACTOR,SEMICIRCULAR
3030-00-529-0479INTERCHANGEABLE
BELT,V
5120-00-541-6732INTERCHANGEABLE
PLIERS
5330-00-928-1819INTERCHANGEABLE
GASKET
P326
3465-01-133-5497INTERCHANGEABLE
BUSHING,DRILL,JIG
P-32-6

Frequently Asked Questions

What is NSN 5310-00-203-8970?

NSN 5310-00-203-8970 is a Washer,flat, manufactured by Cooper Cameron Corp Ajax-Superior Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-203-8970?

NSN 5310-00-203-8970 has 1 cross-referenced part number: P326 (Cooper Cameron Corp Ajax-Superior Div).

What NSN replaces 5310-00-203-8970?

There are 5 known substitutes for 5310-00-203-8970: 6675-00-190-5278, 3030-00-529-0479, 5120-00-541-6732 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P326?

Key specifications for P326: Hole Diameter: 0.870 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR. 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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