PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

20423Cap,lens

Name: 20423
SKU: 6650-01-689-2579

Amerex Corporation Dba Amerex Corp · NSN 6650-01-689-2579 · FSC 6650 · No Item Name Available

Verified by PartsTable

NSN 6650-01-689-2579 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-689-2579. Primary manufacturer part number: 20423.

6650-01-689-2579 — No Item Name Available illustration

Features

Cap,lens — FSC 6650
2 verified cross-references
Primary manufacturer: Amerex Corporation Dba Amerex Corp

Applications

Industrial maintenance and repair
Government and military logistics
Equipment overhaul and refurbishment

General Description

The Cap,lens, cataloged under National Stock Number 6650-01-689-2579, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Amerex Corporation Dba Amerex Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Cap,lens
FSC / FSG	6650 — No Item Name Available (FSG 66)
Manufacturers	Amerex Corporation Dba Amerex Corp (CAGE 54905); Oshkosh Defense Llc (CAGE 75Q65)

Technical Specifications

Parameter	Value
NSN	6650-01-689-2579
Primary Part Number	20423
Item Name	Cap,lens
FSC / FSG	6650 / 66 — No Item Name Available
Manufacturer	Amerex Corporation Dba Amerex Corp
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 7

5310-00-208-678001053203 INTERCHANGEABLE

Nut,plain,hexagon

Clarostat Sensors and Controls

5330-00-757-342220108 INTERCHANGEABLE

Packing,preformed

Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.

5945-00-946-928920423 INTERCHANGEABLE

Solenoid,electrical

Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems

5935-01-014-78592922908 INTERCHANGEABLE

Connector Body,receptacle,electr

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

5975-01-298-1522204-23 INTERCHANGEABLE

Conduit Assembly,flexible

Dcx-Chol Enterprises, Inc.

5340-01-340-4803 INTERCHANGEABLE

Handle,manual Control

4820-01-643-052420423 INTERCHANGEABLE

Valve,ball

United States Plastic Corp

Cross-Reference Index

Part Number	Manufacturer
20423 PRIMARY	Amerex Corporation Dba Amerex Corp (USA)
4258015	Oshkosh Defense Llc (USA)

Related Parts

5310-00-208-6780INTERCHANGEABLE

NUT,PLAIN,HEXAGON

01053203

5330-00-757-3422INTERCHANGEABLE

PACKING,PREFORMED

20108

5945-00-946-9289INTERCHANGEABLE

SOLENOID,ELECTRICAL

20423

5935-01-014-7859INTERCHANGEABLE

CONNECTOR BODY,RECEPTACLE,ELECTR

2922908

5975-01-298-1522INTERCHANGEABLE

CONDUIT ASSEMBLY,FLEXIBLE

204-23

5340-01-340-4803INTERCHANGEABLE

HANDLE,MANUAL CONTROL

4820-01-643-0524INTERCHANGEABLE

VALVE,BALL

20423

Frequently Asked Questions

What is NSN 6650-01-689-2579?

NSN 6650-01-689-2579 is a Cap,lens, manufactured by Amerex Corporation Dba Amerex Corp, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-689-2579?

NSN 6650-01-689-2579 has 2 cross-referenced part numbers: 20423 (Amerex Corporation Dba Amerex Corp), 4258015 (Oshkosh Defense Llc).

What NSN replaces 6650-01-689-2579?

There are 7 known substitutes for 6650-01-689-2579: 5310-00-208-6780, 5330-00-757-3422, 5945-00-946-9289 and 4 more. Verify interchangeability with system specifications before substitution.

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

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