PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-316Washer,flat

Dresser Industries Inc Leroi Div · NSN 5310-00-187-1864 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-187-1864 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-187-1864. Primary manufacturer part number: 20-316.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.250 INCHES NOMINAL IN
  • Thickness: 0.047 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-187-1864, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-187-1864
Primary Part Number20-316
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
MaterialSTEEL OVERALL
Overall Diameter0.500 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.250 INCHES NOMINAL IN
Thickness0.047 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-144-20122031B1 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5306-00-151-0418 INTERCHANGEABLE
Bolt,machine
6810-00-614-969120353 INTERCHANGEABLE
Sulfuric Acid
Hach Company Dba Hach Co
4820-00-702-72779081298 INTERCHANGEABLE
Valve,globe
Us Army Aviation and Missile Command
4820-01-131-7696A13183.001.156 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5325-01-191-734620316 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
4820-01-192-290020316ES 91 SS INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
6515-01-306-5091 INTERCHANGEABLE
Screw,bone
5120-01-349-1444 INTERCHANGEABLE
Wrench,box and Open End,combinat
6240-01-419-7732 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
20-316 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5940-00-144-2012INTERCHANGEABLE
TERMINAL,STUD
2031B1
5306-00-151-0418INTERCHANGEABLE
BOLT,MACHINE
6810-00-614-9691INTERCHANGEABLE
SULFURIC ACID
20353
4820-00-702-7277INTERCHANGEABLE
VALVE,GLOBE
9081298
4820-01-131-7696INTERCHANGEABLE
SEAT,VALVE
A13183.001.156
5325-01-191-7346INTERCHANGEABLE
INSERT,SCREW THREAD
20316
4820-01-192-2900INTERCHANGEABLE
VALVE,SAFETY RELIEF
20316ES 91 SS
6515-01-306-5091INTERCHANGEABLE
SCREW,BONE
5120-01-349-1444INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
6240-01-419-7732INTERCHANGEABLE
LAMP,FLUORESCENT
7510-01-524-9728INTERCHANGEABLE
HOLDER,SOAPSTONE MARKER

Frequently Asked Questions

What is NSN 5310-00-187-1864?

NSN 5310-00-187-1864 is a Washer,flat, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-187-1864?

NSN 5310-00-187-1864 has 1 cross-referenced part number: 20-316 (Dresser Industries Inc Leroi Div).

What NSN replaces 5310-00-187-1864?

There are 11 known substitutes for 5310-00-187-1864: 5940-00-144-2012, 5306-00-151-0418, 6810-00-614-9691 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-316?

Key specifications for 20-316: Material: STEEL OVERALL; Overall Diameter: 0.500 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Hole Diameter: 0.250 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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