PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-661Washer,flat

Rix Industries · NSN 5310-01-616-9233 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-616-9233 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-616-9233. Primary manufacturer part number: 20-661.
Features
  • Washer,flat — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Rix Industries
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-616-9233, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rix Industries. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersRix Industries (CAGE 28953)
Technical Specifications
ParameterValue
NSN5310-01-616-9233
Primary Part Number20-661
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRix Industries
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-189-9296 INTERCHANGEABLE
Drill,twist
4820-01-003-1390366919-2 INTERCHANGEABLE
Valve,regulator
Aerocontrolex Group, Inc.
5330-01-293-8714D-34-94-163 INTERCHANGEABLE
Retainer,packing
Circor Naval Solutions Llc Dba Warren Pumps
5975-01-298-3346206-61 INTERCHANGEABLE
Conduit Assembly,flexible
Dcx-Chol Enterprises, Inc.
5315-01-410-911020-661 INTERCHANGEABLE
Pin,straight,headed
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
3020-01-553-836220-661 INTERCHANGEABLE
Gear,drive Motion
Natural Gas Solutions North America Llc Div Industrial Products Group
5306-01-616-385132-9229 INTERCHANGEABLE
Bolt,machine
Rix Industries
5310-01-616-387220-7520 INTERCHANGEABLE
Washer,flat
Rix Industries
4920-01-616-4429158-D3496 INTERCHANGEABLE
Console,instrumentation
Rix Industries
5306-01-616-534032-4163 INTERCHANGEABLE
Bolt,machine
Rix Industries
Cross-Reference Index
Part NumberManufacturer
20-661 PRIMARY Rix Industries (USA)
D3494 Rix Industries (USA)
Related Parts
5133-00-189-9296INTERCHANGEABLE
DRILL,TWIST
4820-01-003-1390INTERCHANGEABLE
VALVE,REGULATOR
366919-2
5330-01-293-8714INTERCHANGEABLE
RETAINER,PACKING
D-34-94-163
5975-01-298-3346INTERCHANGEABLE
CONDUIT ASSEMBLY,FLEXIBLE
206-61
5315-01-410-9110INTERCHANGEABLE
PIN,STRAIGHT,HEADED
20-661
3020-01-553-8362INTERCHANGEABLE
GEAR,DRIVE MOTION
20-661
5306-01-616-3851INTERCHANGEABLE
BOLT,MACHINE
32-9229
5310-01-616-3872INTERCHANGEABLE
WASHER,FLAT
20-7520
4920-01-616-4429INTERCHANGEABLE
CONSOLE,INSTRUMENTATION
158-D3496
5306-01-616-5340INTERCHANGEABLE
BOLT,MACHINE
32-4163
5935-01-616-6831INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
61-9005
5935-01-616-8029INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
61-9002

Frequently Asked Questions

What is NSN 5310-01-616-9233?

NSN 5310-01-616-9233 is a Washer,flat, manufactured by Rix Industries, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-616-9233?

NSN 5310-01-616-9233 has 2 cross-referenced part numbers: 20-661 (Rix Industries), D3494 (Rix Industries).

What NSN replaces 5310-01-616-9233?

There are 12 known substitutes for 5310-01-616-9233: 5133-00-189-9296, 4820-01-003-1390, 5330-01-293-8714 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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