PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99278-720-2Washer,flat

Hydraulics International, Inc. Dba Hydraulics International Inc · NSN 5310-01-569-6042 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-569-6042 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-569-6042. Primary manufacturer part number: 99278-720-2.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL COMP 304 OVERALL
  • Overall Diameter: 1.320 INCHES NOMINAL IN
  • Hole Diameter: 0.765 INCHES NOMINAL IN
  • Thickness: 0.030 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 304 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-569-6042, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-569-6042
Primary Part Number99278-720-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHydraulics International, Inc. Dba Hydraulics International Inc
StatusACTIVE
MaterialSTEEL COMP 304 OVERALL
Overall Diameter1.320 INCHES NOMINAL IN
Hole Diameter0.765 INCHES NOMINAL IN
Thickness0.030 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6675-00-328-6573 INTERCHANGEABLE
Template,drafting
4730-00-725-3446010L7-6-8 INTERCHANGEABLE
Reducer,pipe
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
5360-01-380-0713231022 INTERCHANGEABLE
Spring,helical,compression
Clark Material Handling Company
Cross-Reference Index
Part NumberManufacturer
99278-720-2 PRIMARY Hydraulics International, Inc. Dba Hydraulics International Inc (USA)
23102-2 PRIMARY Hydraulics International, Inc. Dba Hydraulics International Inc (USA)
Related Parts
6675-00-328-6573INTERCHANGEABLE
TEMPLATE,DRAFTING
4730-00-725-3446INTERCHANGEABLE
REDUCER,PIPE
010L7-6-8
5360-01-380-0713INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
231022

Frequently Asked Questions

What is NSN 5310-01-569-6042?

NSN 5310-01-569-6042 is a Washer,flat, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-569-6042?

NSN 5310-01-569-6042 has 2 cross-referenced part numbers: 99278-720-2 (Hydraulics International, Inc. Dba Hydraulics International Inc), 23102-2 (Hydraulics International, Inc. Dba Hydraulics International Inc).

What NSN replaces 5310-01-569-6042?

There are 3 known substitutes for 5310-01-569-6042: 6675-00-328-6573, 4730-00-725-3446, 5360-01-380-0713. Verify interchangeability with system specifications before substitution.

What are the specifications of 99278-720-2?

Key specifications for 99278-720-2: Material: STEEL COMP 304 OVERALL; Overall Diameter: 1.320 INCHES NOMINAL IN; Hole Diameter: 0.765 INCHES NOMINAL IN; Thickness: 0.030 INCHES NOMINAL IN. 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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