PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FWSB6NWasher,flat

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5310-00-262-4574 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-4574 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-4574. Primary manufacturer part number: FWSB6N.
Features
  • Washer,flat — FSC 5310
  • Surface Treatment: NICKEL OVERALL
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.312 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.151 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Thickness: 0.028 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-262-4574, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-262-4574
Primary Part NumberFWSB6N
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusCANCELLED
Surface TreatmentNICKEL OVERALL
Center Hole Shape StyleROUND
Overall Diameter0.312 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.151 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Thickness0.028 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-155-6716120-9 BRG INTERCHANGEABLE
Bearing,ball,annular
Manitowoc Engineering Co Division of the Manitowoc Co Inc
6625-00-316-5436361843-3 INTERCHANGEABLE
Detector,radio Frequency
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
2910-00-317-4797149-0526 INTERCHANGEABLE
Parts Kit,engine Fuel Pump
Cummins Power Generation Inc.
4720-00-481-9390113-964ID1 INTERCHANGEABLE
Hose,nonmetallic
Cooper Machinery Services Llc
6740-00-510-91399444 INTERCHANGEABLE
Bearing Assy,drum S
Beseler, Charles Co Inc
5950-00-717-3142 INTERCHANGEABLE
Reactor
6680-00-792-8959 INTERCHANGEABLE
Glass Liquid Sight
5950-00-919-7671020-011-000 INTERCHANGEABLE
Transformer,power
Meggitt Safety Systems Inc
5910-00-926-2357 INTERCHANGEABLE
Capacitor,fixed,electrolytic
5340-00-968-39871444 INTERCHANGEABLE
Bracket,angle
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Cross-Reference Index
Part NumberManufacturer
24587 Peraton Inc (USA)
3811-3-5 Federal Div of Victoreen Instrument Co Inc (USA)
FWSB6N PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
EE5-1-6S Raytheon Technical Services Company (USA)
EE5-1-6S Cae Usa Inc. (USA)
24587 PRIMARY Telephonics Corp/prd Instruments (USA)
1444 PRIMARY Federal Screw Products, Inc. (USA)
Related Parts
3110-00-155-6716INTERCHANGEABLE
BEARING,BALL,ANNULAR
120-9 BRG
6625-00-316-5436INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
361843-3
2910-00-317-4797INTERCHANGEABLE
PARTS KIT,ENGINE FUEL PUMP
149-0526
4720-00-481-9390INTERCHANGEABLE
HOSE,NONMETALLIC
113-964ID1
6740-00-510-9139INTERCHANGEABLE
BEARING ASSY,DRUM S
9444
5950-00-717-3142INTERCHANGEABLE
REACTOR
6680-00-792-8959INTERCHANGEABLE
GLASS LIQUID SIGHT
5950-00-919-7671INTERCHANGEABLE
TRANSFORMER,POWER
020-011-000
5910-00-926-2357INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
5340-00-968-3987INTERCHANGEABLE
BRACKET,ANGLE
1444
5940-01-037-8908INTERCHANGEABLE
POST,BINDING,ELECTRICAL
1005-01-130-7400INTERCHANGEABLE
TURBINE,BIDIRECTIONAL
MC15960

Frequently Asked Questions

What is NSN 5310-00-262-4574?

NSN 5310-00-262-4574 is a Washer,flat, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-4574?

NSN 5310-00-262-4574 has 7 cross-referenced part numbers: 24587 (Peraton Inc), 3811-3-5 (Federal Div of Victoreen Instrument Co Inc), FWSB6N (Bae Systems Information and Electronic Systems Integration Inc.), EE5-1-6S (Raytheon Technical Services Company), EE5-1-6S (Cae Usa Inc.) and 2 more.

What NSN replaces 5310-00-262-4574?

There are 12 known substitutes for 5310-00-262-4574: 3110-00-155-6716, 6625-00-316-5436, 2910-00-317-4797 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FWSB6N?

Key specifications for FWSB6N: Surface Treatment: NICKEL OVERALL; Center Hole Shape Style: ROUND; Overall Diameter: 0.312 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-4574 still in active supply?

NSN 5310-00-262-4574 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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