PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILW1085TYPEAWasher,flat

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-187-5351 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-187-5351 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-187-5351. Primary manufacturer part number: MILW1085TYPEA.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 2.000 INCHES NOMINAL IN
  • Hole Diameter: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: A TYPE
  • Material: IRON OVERALL
  • Thickness: 0.156 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Iron Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-187-5351, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-187-5351
Primary Part NumberMILW1085TYPEA
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Overall Diameter2.000 INCHES NOMINAL IN
Hole Diameter0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
Nondefinitive Spec/std DataA TYPE
MaterialIRON OVERALL
Thickness0.156 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5310-00-139-3007 INTERCHANGEABLE
Nut,plain,hexagon
5355-00-579-2896 INTERCHANGEABLE
Knob
5999-00-982-4585 INTERCHANGEABLE
Shielding Gasket,electronic
5120-01-031-683770200 INTERCHANGEABLE
Die,crimping Tool
Abb Installation Products Inc
6635-01-172-036370200 INTERCHANGEABLE
Tester,material Hardness
Shore Instrument and Mfg Co Inc Sub of High Voltage Engineering Corp
6540-01-202-806370200 INTERCHANGEABLE
Conditioning Solution,lens,ophth
Brain Power Inc Dba Brain Power Inc Div Brain Power Incorporated
4720-01-369-599370-200 INTERCHANGEABLE
Hose,nonmetallic
Burke Industries Purosil Div
5925-01-509-450670200 INTERCHANGEABLE
Circuit Breaker
Dentsply Sirona Inc Div Dentsply Prosthetics Division (aka Trubyte)
5975-01-657-201670200 INTERCHANGEABLE
Plate,wall,electrical
Datapro International Inc.
6685-01-685-438470200 INTERCHANGEABLE
Control,combustion,oil Burner
Cowles Operating Company Dba Carlin Combustion Technology Div Carlin Combustion Technologies
Cross-Reference Index
Part NumberManufacturer
MILW1085TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
70200 Cummins Inc. (USA)
Related Parts
5310-00-139-3007INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5355-00-579-2896INTERCHANGEABLE
KNOB
5999-00-982-4585INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
5120-01-031-6837INTERCHANGEABLE
DIE,CRIMPING TOOL
70200
6635-01-172-0363INTERCHANGEABLE
TESTER,MATERIAL HARDNESS
70200
6540-01-202-8063INTERCHANGEABLE
CONDITIONING SOLUTION,LENS,OPHTH
70200
4720-01-369-5993INTERCHANGEABLE
HOSE,NONMETALLIC
70-200
5925-01-509-4506INTERCHANGEABLE
CIRCUIT BREAKER
70200
5975-01-657-2016INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
70200
6685-01-685-4384INTERCHANGEABLE
CONTROL,COMBUSTION,OIL BURNER
70200

Frequently Asked Questions

What is NSN 5310-00-187-5351?

NSN 5310-00-187-5351 is a Washer,flat, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-187-5351?

NSN 5310-00-187-5351 has 2 cross-referenced part numbers: MILW1085TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 70200 (Cummins Inc.).

What NSN replaces 5310-00-187-5351?

There are 10 known substitutes for 5310-00-187-5351: 5310-00-139-3007, 5355-00-579-2896, 5999-00-982-4585 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILW1085TYPEA?

Key specifications for MILW1085TYPEA: Overall Diameter: 2.000 INCHES NOMINAL IN; Hole Diameter: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: A TYPE; Material: IRON OVERALL. 8 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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