PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1809PJWasher,flat

Hunt Valve Company, Inc. · NSN 5310-01-014-4279 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-014-4279 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-014-4279. Primary manufacturer part number: A1809PJ.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.062 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.375 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-014-4279, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-014-4279
Primary Part NumberA1809PJ
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Thickness0.062 INCHES NOMINAL IN
Peripheral Shape StyleROUND
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Overall Diameter0.750 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Hole Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-462-6100544815-1 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
4330-00-884-9299PLS-614 INTERCHANGEABLE
Filter Element,fluid
North American Filter Corp Refilco Div
4730-01-210-960925675-32-32D INTERCHANGEABLE
Adapter,straight,hose to Boss
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
4820-01-247-310811057-001-103 INTERCHANGEABLE
Seat,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
A1809 P J Valves Inc (USA)
A1809PJ PRIMARY Hunt Valve Company, Inc. (USA)
A1809P Rutgers Pressure Forming Corp (USA)
Related Parts
5935-00-462-6100INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
544815-1
4330-00-884-9299INTERCHANGEABLE
FILTER ELEMENT,FLUID
PLS-614
4730-01-210-9609INTERCHANGEABLE
ADAPTER,STRAIGHT,HOSE TO BOSS
25675-32-32D
4820-01-247-3108INTERCHANGEABLE
SEAT,VALVE
11057-001-103

Frequently Asked Questions

What is NSN 5310-01-014-4279?

NSN 5310-01-014-4279 is a Washer,flat, manufactured by Hunt Valve Company, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-014-4279?

NSN 5310-01-014-4279 has 3 cross-referenced part numbers: A1809 (P J Valves Inc), A1809PJ (Hunt Valve Company, Inc.), A1809P (Rutgers Pressure Forming Corp).

What NSN replaces 5310-01-014-4279?

There are 4 known substitutes for 5310-01-014-4279: 5935-00-462-6100, 4330-00-884-9299, 4730-01-210-9609 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1809PJ?

Key specifications for A1809PJ: Thickness: 0.062 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Overall Diameter: 0.750 INCHES NOMINAL IN. 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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