PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Hardware and Abrasives / 5310-00-285-8538

PH30Washer,flat

Wisconsin Motors, Llc · NSN 5310-00-285-8538 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-285-8538 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-285-8538. Primary manufacturer part number: PH30.
AF 0.266 INCHES NOMINAL IN NUT + WASHER
5310-00-285-8538 — No Item Name Available illustration
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.266 INCHES NOMINAL IN
  • Thickness: 0.040 INCHES NOMINAL IN
  • Material: COPPER OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.438 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-285-8538, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Wisconsin Motors, Llc. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-285-8538
Primary Part NumberPH30
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusCANCELLED
Hole Diameter0.266 INCHES NOMINAL IN
Thickness0.040 INCHES NOMINAL IN
MaterialCOPPER OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Overall Diameter0.438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
⇄ Verified Substitutes 2
2540-00-835-9039 INTERCHANGEABLE
Pintle Assembly,towing
2540-01-729-7954PH30 INTERCHANGEABLE
Pintle Assembly,towing
Buyers Products Company
Cross-Reference Index
Part NumberManufacturer
PH30 PRIMARY Wisconsin Motors, Llc (USA)
Related Parts
2540-00-835-9039INTERCHANGEABLE
PINTLE ASSEMBLY,TOWING
2540-01-729-7954INTERCHANGEABLE
PINTLE ASSEMBLY,TOWING
PH30

Frequently Asked Questions

What is NSN 5310-00-285-8538?

NSN 5310-00-285-8538 is a Washer,flat, manufactured by Wisconsin Motors, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-285-8538?

NSN 5310-00-285-8538 has 1 cross-referenced part number: PH30 (Wisconsin Motors, Llc).

What NSN replaces 5310-00-285-8538?

There are 2 known substitutes for 5310-00-285-8538: 2540-00-835-9039, 2540-01-729-7954. Verify interchangeability with system specifications before substitution.

What are the specifications of PH30?

Key specifications for PH30: Hole Diameter: 0.266 INCHES NOMINAL IN; Thickness: 0.040 INCHES NOMINAL IN; Material: COPPER OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-285-8538 still in active supply?

NSN 5310-00-285-8538 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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Home · MRO Catalog · Hardware and Abrasives · TDS Rev 1.0 · 2026-07-22