PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2491Button,plug

Heyco Inc Dba Heyco Products · NSN 5340-01-501-3395 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-501-3395 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-501-3395. Primary manufacturer part number: 2491.
Features
  • Button,plug — FSC 5340
  • 4 verified cross-references
  • Primary manufacturer: Heyco Inc Dba Heyco Products
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Button,plug, cataloged under National Stock Number 5340-01-501-3395, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Heyco Inc Dba Heyco Products. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameButton,plug
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersKeysight Technologies Inc (CAGE 7ZXR5); Heyco Inc Dba Heyco Products (CAGE 28520); Hewlett-Packard Company Dba HP (CAGE 28480); Keysight Technologies, Inc. (CAGE 1LQK8)
Successor NSN6515-01-250-7549 — Tube Assembly,gas Anesthesia App
Technical Specifications
ParameterValue
NSN5340-01-501-3395
Primary Part Number2491
Item NameButton,plug
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHeyco Inc Dba Heyco Products
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Tube Assembly,gas Anesthesia App
3120-00-216-93672491 INTERCHANGEABLE
Bearing Assembly
Northrop Grumman Systems Corporation Div Marine Systems
6680-00-358-1958249-1 INTERCHANGEABLE
Indicator,electrical Tachometer
The Dewey Electronics Corporation Div Pitometer Log Division
5340-00-497-8670249-1 INTERCHANGEABLE
Snap Hook
Buckles International, Inc.
5330-00-630-1793710501 INTERCHANGEABLE
Gasket
Hamilton Sundstrand Corporation
2805-00-830-38796B4833 INTERCHANGEABLE
Ring Piston
Caterpillar Inc Div Caterpillar Defense
5915-00-879-2490SM-A-763726 INTERCHANGEABLE
Filter,low Pass
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6210-01-113-59422-49-1 INTERCHANGEABLE
Light,indicator
Automation Products Group, Inc.
4820-01-165-5889 INTERCHANGEABLE
Seat,valve
2940-01-176-057942491 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
Cross-Reference Index
Part NumberManufacturer
6960-0149 Keysight Technologies Inc (USA)
2491 PRIMARY Heyco Inc Dba Heyco Products (USA)
6960-0149 Hewlett-Packard Company Dba HP (USA)
6960-0149 Keysight Technologies, Inc. (USA)
Related Parts
6515-01-250-7549SUCCESSOR
TUBE ASSEMBLY,GAS ANESTHESIA APP
3120-00-216-9367INTERCHANGEABLE
BEARING ASSEMBLY
2491
6680-00-358-1958INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
249-1
5340-00-497-8670INTERCHANGEABLE
SNAP HOOK
249-1
5330-00-630-1793INTERCHANGEABLE
GASKET
710501
2805-00-830-3879INTERCHANGEABLE
RING PISTON
6B4833
5915-00-879-2490INTERCHANGEABLE
FILTER,LOW PASS
SM-A-763726
6210-01-113-5942INTERCHANGEABLE
LIGHT,INDICATOR
2-49-1
4820-01-165-5889INTERCHANGEABLE
SEAT,VALVE
2940-01-176-0579INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42491
5330-01-307-3780INTERCHANGEABLE
PACKING MATERIAL
1625G 1/4 IN.
6210-01-334-2919INTERCHANGEABLE
LIGHT,INDICATOR
11460090-1

Frequently Asked Questions

What is NSN 5340-01-501-3395?

NSN 5340-01-501-3395 is a Button,plug, manufactured by Heyco Inc Dba Heyco Products, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-501-3395?

NSN 5340-01-501-3395 has 4 cross-referenced part numbers: 6960-0149 (Keysight Technologies Inc), 2491 (Heyco Inc Dba Heyco Products), 6960-0149 (Hewlett-Packard Company Dba HP), 6960-0149 (Keysight Technologies, Inc.).

What NSN replaces 5340-01-501-3395?

There are 12 known substitutes for 5340-01-501-3395: 6515-01-250-7549, 3120-00-216-9367, 6680-00-358-1958 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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