PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4416677Washer,split

Oshkosh Defense Llc · NSN 5310-01-678-8081 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-678-8081 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-678-8081. Primary manufacturer part number: 4416677.
Features
  • Washer,split — FSC 5310
  • Outside Diameter: 0.270 INCHES NOMINAL IN
  • Material Thickness: 0.030 INCHES NOMINAL IN
  • Hole Diameter: 0.170 INCHES NOMINAL IN
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Style Designator: SPLIT
  • 3 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,split, cataloged under National Stock Number 5310-01-678-8081, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Oshkosh Defense Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-678-8081
Primary Part Number4416677
Item NameWasher,split
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerOshkosh Defense Llc
StatusACTIVE
Outside Diameter0.270 INCHES NOMINAL IN
Material Thickness0.030 INCHES NOMINAL IN
Hole Diameter0.170 INCHES NOMINAL IN
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Style DesignatorSPLIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5975-00-340-28252137B INTERCHANGEABLE
Plate,wall,electrical
Cooper Wiring Devices Inc.
5310-00-624-0442850-0025 INTERCHANGEABLE
Washer,lock
Cummins Power Generation Inc.
5865-00-714-500085025 INTERCHANGEABLE
Waveguide Assy
L3harris Technologies, Inc Div Space & Airborne Systems
4320-01-215-918685025 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Magnetic Seal Llc
6625-01-423-507485025 INTERCHANGEABLE
Generator,signal
Dynatron Systems Corporation
Cross-Reference Index
Part NumberManufacturer
85025 Cole Hersee Company (USA)
4416677 PRIMARY Oshkosh Defense Llc (USA)
4416677/75Q65 Oshkosh Defense Llc (USA)
Related Parts
5975-00-340-2825INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
2137B
5310-00-624-0442INTERCHANGEABLE
WASHER,LOCK
850-0025
5865-00-714-5000INTERCHANGEABLE
WAVEGUIDE ASSY
85025
4320-01-215-9186INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
85025
6625-01-423-5074INTERCHANGEABLE
GENERATOR,SIGNAL
85025

Frequently Asked Questions

What is NSN 5310-01-678-8081?

NSN 5310-01-678-8081 is a Washer,split, manufactured by Oshkosh Defense Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-678-8081?

NSN 5310-01-678-8081 has 3 cross-referenced part numbers: 85025 (Cole Hersee Company), 4416677 (Oshkosh Defense Llc), 4416677/75Q65 (Oshkosh Defense Llc).

What NSN replaces 5310-01-678-8081?

There are 5 known substitutes for 5310-01-678-8081: 5975-00-340-2825, 5310-00-624-0442, 5865-00-714-5000 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4416677?

Key specifications for 4416677: Outside Diameter: 0.270 INCHES NOMINAL IN; End Item Identification: 2320-01-652-5208; Part Name Assigned by Controlling Agency: WASH, LK, SPLIT; Material 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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