PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-367Washer,flat

Dresser Industries Inc Leroi Div · NSN 5310-00-187-1853 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-187-1853 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-187-1853. Primary manufacturer part number: 20-367.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material: COPPER OVERALL
  • Hole Diameter: 0.631 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Thickness: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
  • Overall Diameter: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM 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 5310-00-187-1853, 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
NSN5310-00-187-1853
Primary Part Number20-367
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Center Hole Shape StyleROUND
MaterialCOPPER OVERALL
Hole Diameter0.631 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Overall Diameter0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6640-00-045-4900279 INTERCHANGEABLE
Head,laboratory Centrifuge
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
5330-00-297-732410A3170 INTERCHANGEABLE
Gasket
Napco International Llc Dba Napco International Inc
5945-00-611-091320376 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon
2910-01-136-434420367 INTERCHANGEABLE
Cap,port Assembly
Parker Hannifin Corporation Div Hydraulic Systems Division
3040-01-203-485720367 INTERCHANGEABLE
Hub,body
Twg Canada Consolidated Inc
4820-01-359-0547 INTERCHANGEABLE
Valve,angle
4820-01-364-7235 INTERCHANGEABLE
Valve,saddle
4820-01-368-8483 INTERCHANGEABLE
Valve,relief,pressure and Temper
4820-01-370-2326 INTERCHANGEABLE
Valve,angle
4820-01-378-4715 INTERCHANGEABLE
Valve,relief,pressure and Temper
Cross-Reference Index
Part NumberManufacturer
20-367 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
6640-00-045-4900INTERCHANGEABLE
HEAD,LABORATORY CENTRIFUGE
279
5330-00-297-7324INTERCHANGEABLE
GASKET
10A3170
5945-00-611-0913INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
20376
2910-01-136-4344INTERCHANGEABLE
CAP,PORT ASSEMBLY
20367
3040-01-203-4857INTERCHANGEABLE
HUB,BODY
20367
4820-01-359-0547INTERCHANGEABLE
VALVE,ANGLE
4820-01-364-7235INTERCHANGEABLE
VALVE,SADDLE
4820-01-368-8483INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
4820-01-370-2326INTERCHANGEABLE
VALVE,ANGLE
4820-01-378-4715INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
4820-01-443-7721INTERCHANGEABLE
VALVE,SAFETY RELIEF
20367L51M

Frequently Asked Questions

What is NSN 5310-00-187-1853?

NSN 5310-00-187-1853 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 5310-00-187-1853?

NSN 5310-00-187-1853 has 1 cross-referenced part number: 20-367 (Dresser Industries Inc Leroi Div).

What NSN replaces 5310-00-187-1853?

There are 11 known substitutes for 5310-00-187-1853: 6640-00-045-4900, 5330-00-297-7324, 5945-00-611-0913 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-367?

Key specifications for 20-367: Center Hole Shape Style: ROUND; Material: COPPER OVERALL; Hole Diameter: 0.631 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com