PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4327Washer,flat

Eaton Corporation · NSN 5310-00-870-0345 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-870-0345 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-870-0345. Primary manufacturer part number: 4327.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Hole Diameter: 1.250 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 2.000 INCHES NOMINAL IN
  • Thickness: 0.218 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-870-0345, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-870-0345
Primary Part Number4327
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Corporation
StatusACTIVE
MaterialSTEEL OVERALL
Hole Diameter1.250 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter2.000 INCHES NOMINAL IN
Thickness0.218 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2805-00-036-124726152 INTERCHANGEABLE
Pushrod
Grove Valve Operations
4720-00-393-3903 INTERCHANGEABLE
Hose Assembly,nonmetallic
6615-00-436-033626152 INTERCHANGEABLE
Gland,snubbing
Parker-Hannifin Corporation Dba Control Systems Division
5130-00-447-82774327 INTERCHANGEABLE
Retainer,blade Guar
Skil Corp
2915-00-480-17032-469-62 INTERCHANGEABLE
Bracket Assembly,cam
Parker Hannifin Corporation Div Aerospace Group Headquarters
5915-00-501-3614499915PC1 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-00-578-9329126-152 INTERCHANGEABLE
Connector,plug,electrical
Wire-Pro, Inc Dba Wpi-Salem Division
5305-00-813-5486128C946H08 INTERCHANGEABLE
Screw,shoulder
Unicorp.
5970-00-899-6653 INTERCHANGEABLE
Insulation Sleeving,electrical
5330-01-022-55042615-2 INTERCHANGEABLE
Gasket
Tescom Corp Dba Tescom Div Tescom
Cross-Reference Index
Part NumberManufacturer
4327 PRIMARY Eaton Corporation (USA)
2719-4327 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS)
26152 Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations (USA)
246962 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
246962 General Motors Llc Dba General Motors Llc (USA)
Related Parts
2805-00-036-1247INTERCHANGEABLE
PUSHROD
26152
4720-00-393-3903INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
6615-00-436-0336INTERCHANGEABLE
GLAND,SNUBBING
26152
5130-00-447-8277INTERCHANGEABLE
RETAINER,BLADE GUAR
4327
2915-00-480-1703INTERCHANGEABLE
BRACKET ASSEMBLY,CAM
2-469-62
5915-00-501-3614INTERCHANGEABLE
FILTER,BAND PASS
499915PC1
5935-00-578-9329INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
126-152
5305-00-813-5486INTERCHANGEABLE
SCREW,SHOULDER
128C946H08
5970-00-899-6653INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
5330-01-022-5504INTERCHANGEABLE
GASKET
2615-2
5950-01-124-0015INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
76E5N513
3130-01-192-9415INTERCHANGEABLE
CAP,PILLOW BLOCK
26152

Frequently Asked Questions

What is NSN 5310-00-870-0345?

NSN 5310-00-870-0345 is a Washer,flat, manufactured by Eaton Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-870-0345?

NSN 5310-00-870-0345 has 5 cross-referenced part numbers: 4327 (Eaton Corporation), 2719-4327 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 26152 (Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations), 246962 (Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02), 246962 (General Motors Llc Dba General Motors Llc).

What NSN replaces 5310-00-870-0345?

There are 12 known substitutes for 5310-00-870-0345: 2805-00-036-1247, 4720-00-393-3903, 6615-00-436-0336 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4327?

Key specifications for 4327: Material: STEEL OVERALL; Hole Diameter: 1.250 INCHES NOMINAL IN; Peripheral Shape Style: ROUND; 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.
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