PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55A319Washer,shouldered

Heil Environmental Industries · NSN 5310-00-700-0820 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-700-0820 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-700-0820. Primary manufacturer part number: 55A319.
Features
  • Washer,shouldered — FSC 5310
  • Outside Diameter: 0.875 INCHES NOMINAL IN
  • Shoulder Diameter: 0.531 INCHES NOMINAL IN
  • Hole Diameter: 0.281 INCHES NOMINAL IN
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1117 OVERALL
  • Style Designator: SHOULDERED
  • Shoulder Height: 0.125 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1117 Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-00-700-0820, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Heil Environmental Industries. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 18 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-700-0820
Primary Part Number55A319
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHeil Environmental Industries
StatusCANCELLED
Outside Diameter0.875 INCHES NOMINAL IN
Shoulder Diameter0.531 INCHES NOMINAL IN
Hole Diameter0.281 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1117 OVERALL
Style DesignatorSHOULDERED
Shoulder Height0.125 INCHES NOMINAL IN
Hardness Rating87.0 ROCKWELL B NOMINAL
Material Thickness0.063 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
1420-00-440-47292189141 INTERCHANGEABLE
Ring,seal
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2910-00-966-1791165512H1 INTERCHANGEABLE
Filter Element,fluid
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
Cross-Reference Index
Part NumberManufacturer
55A319 PRIMARY Heil Environmental Industries (USA)
418804 White Motor Corp (USA)
7002105 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
GTB5405 Ford Motor Company (USA)
2189141 General Motors Llc Dba General Motors Llc (USA)
GTB5405 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
BB1778 Diamond Reo Truck Co (USA)
12Y2533 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
12Y2533 PRIMARY Mack Trucks Inc Parts Opn (USA)
42E12Y2533 PRIMARY Fwd Seagrave Holdings Lp (USA)
380957007 Kaitlin Corp (USA)
16A7422 PRIMARY Napco International Llc Dba Napco International Inc (USA)
12Y2533 PRIMARY Kenworth Truck Co a Div of Paccar Inc (USA)
667550 Sasco Inc Canadian Div
GTB19074 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
127674 Celtrac Corp (USA)
7000820 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
358173 White Motor Corp (USA)
12Y2533 PRIMARY Garwood/feller Inc Garwood Winch Div (USA)
12Y2533 Paccar Government Group Co Yarrow Bay Office Pk (USA)
Related Parts
1420-00-440-4729INTERCHANGEABLE
RING,SEAL
2189141
2910-00-966-1791INTERCHANGEABLE
FILTER ELEMENT,FLUID
165512H1

Frequently Asked Questions

What is NSN 5310-00-700-0820?

NSN 5310-00-700-0820 is a Washer,shouldered, manufactured by Heil Environmental Industries, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-700-0820?

NSN 5310-00-700-0820 has 25 cross-referenced part numbers: 55A319 (Heil Environmental Industries), 418804 (White Motor Corp), 7002105 (U S Army Tank Automotive Command Amsta-Im-Mm), GTB5405 (Ford Motor Company), 2189141 (General Motors Llc Dba General Motors Llc) and 20 more.

What NSN replaces 5310-00-700-0820?

There are 2 known substitutes for 5310-00-700-0820: 1420-00-440-4729, 2910-00-966-1791. Verify interchangeability with system specifications before substitution.

What are the specifications of 55A319?

Key specifications for 55A319: Outside Diameter: 0.875 INCHES NOMINAL IN; Shoulder Diameter: 0.531 INCHES NOMINAL IN; Hole Diameter: 0.281 INCHES NOMINAL IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-700-0820 still in active supply?

NSN 5310-00-700-0820 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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