PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4168AWasher,flat

Ward Leonard Ct Llc · NSN 5310-00-599-1150 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-599-1150 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-599-1150. Primary manufacturer part number: 4168A.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.375 INCHES NOMINAL IN
  • Material: PLASTIC OVERALL
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.625 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Thickness: 0.062 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-599-1150, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-599-1150
Primary Part Number4168A
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWard Leonard Ct Llc
StatusCANCELLED
Overall Diameter1.375 INCHES NOMINAL IN
MaterialPLASTIC OVERALL
Peripheral Shape StyleROUND
Hole Diameter0.625 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Thickness0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5330-00-244-24154168A INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5310-00-599-9748 INTERCHANGEABLE
Washer,flat
4730-00-679-56828761091 INTERCHANGEABLE
Bolt,fluid Passage
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
DL856355SUB0PT20 L3 Technologies, Inc. Div Communication Systems-East (USA)
5871-98 Bogue Systems Inc Dba Bogue Systems Inc (USA)
DL856355SUB0PT20 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
5871-98 Bogue Electric Manufacturing Co (USA)
865765SUB0PT20 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
4168A PRIMARY Ward Leonard Ct Llc (USA)
865765SUB0PT20 L3 Technologies, Inc. Div Communication Systems-East (USA)
Related Parts
5330-00-244-2415INTERCHANGEABLE
GASKET
4168A
5310-00-599-9748INTERCHANGEABLE
WASHER,FLAT
4730-00-679-5682INTERCHANGEABLE
BOLT,FLUID PASSAGE
8761091

Frequently Asked Questions

What is NSN 5310-00-599-1150?

NSN 5310-00-599-1150 is a Washer,flat, manufactured by Ward Leonard Ct Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-599-1150?

NSN 5310-00-599-1150 has 7 cross-referenced part numbers: DL856355SUB0PT20 (L3 Technologies, Inc. Div Communication Systems-East), 5871-98 (Bogue Systems Inc Dba Bogue Systems Inc), DL856355SUB0PT20 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 5871-98 (Bogue Electric Manufacturing Co), 865765SUB0PT20 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin) and 2 more.

What NSN replaces 5310-00-599-1150?

There are 3 known substitutes for 5310-00-599-1150: 5330-00-244-2415, 5310-00-599-9748, 4730-00-679-5682. Verify interchangeability with system specifications before substitution.

What are the specifications of 4168A?

Key specifications for 4168A: Overall Diameter: 1.375 INCHES NOMINAL IN; Material: PLASTIC OVERALL; Peripheral Shape Style: ROUND; Hole Diameter: 0.625 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-599-1150 still in active supply?

NSN 5310-00-599-1150 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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