PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PH318AWasher,flat

Wisconsin Motors, Llc · NSN 5310-00-291-9204 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-291-9204 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-291-9204. Primary manufacturer part number: PH318A.
Features
  • Washer,flat — FSC 5310
  • Material: RUBBER SYNTHETIC OVERALL
  • Thickness: 0.062 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.297 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.625 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-291-9204, 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 2 commercial cross-references from 2 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
NSN5310-00-291-9204
Primary Part NumberPH318A
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusCANCELLED
MaterialRUBBER SYNTHETIC OVERALL
Thickness0.062 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Hole Diameter0.297 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5930-00-061-2008T-91-S INTERCHANGEABLE
Switch,foot
Linemaster Switch Corporation Dba Linemaster Switch Corp
Cross-Reference Index
Part NumberManufacturer
7218982 Watertown Arsenal Smiwt-Re (USA)
PH318A PRIMARY Wisconsin Motors, Llc (USA)
Related Parts
5930-00-061-2008INTERCHANGEABLE
SWITCH,FOOT
T-91-S

Frequently Asked Questions

What is NSN 5310-00-291-9204?

NSN 5310-00-291-9204 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 5310-00-291-9204?

NSN 5310-00-291-9204 has 2 cross-referenced part numbers: 7218982 (Watertown Arsenal Smiwt-Re), PH318A (Wisconsin Motors, Llc).

What NSN replaces 5310-00-291-9204?

There is 1 known substitute for 5310-00-291-9204: 5930-00-061-2008. Verify interchangeability with system specifications before substitution.

What are the specifications of PH318A?

Key specifications for PH318A: Material: RUBBER SYNTHETIC OVERALL; Thickness: 0.062 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Hole Diameter: 0.297 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-291-9204 still in active supply?

NSN 5310-00-291-9204 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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