PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2591Button,plug

Heyco Inc Dba Heyco Products · NSN 5340-00-690-8891 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-690-8891 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-690-8891. Primary manufacturer part number: 2591.
Features
  • Button,plug — FSC 5340
  • Head Height: 0.063 INCHES NOMINAL IN
  • Prong Outside Diameter: 0.188 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM
  • Material Accommodated Thickness: 0.037 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
  • Prong Quantity: 6
  • Style Designator: STANDARD
  • Head Outside Diameter: 0.344 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Button,plug, cataloged under National Stock Number 5340-00-690-8891, 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. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-690-8891
Primary Part Number2591
Item NameButton,plug
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHeyco Inc Dba Heyco Products
StatusCANCELLED
Head Height0.063 INCHES NOMINAL IN
Prong Outside Diameter0.188 INCHES NOMINAL IN
Surface TreatmentCADMIUM
Material Accommodated Thickness0.037 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Prong Quantity6
Style DesignatorSTANDARD
Head Outside Diameter0.344 INCHES NOMINAL IN
Hole Accommodation Diameter0.188 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Wheel,caster
5950-00-068-7943577R593H01 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6220-00-115-5038259-001-GRN INTERCHANGEABLE
Lens,light
Perko Inc
5330-00-392-536825935 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-00-433-1475 INTERCHANGEABLE
Gasket
5999-00-480-25642593 INTERCHANGEABLE
Contact,electrical
Instruments and Flight Research, Inc.
6510-00-559-3200 INTERCHANGEABLE
Bandage,elastic
3020-00-772-79092593 INTERCHANGEABLE
Gear,spur
L3harris Technologies, Inc. Div Space and Airborne Systems
5961-00-905-1817479-0721-003 INTERCHANGEABLE
Semiconductor Device,diode
The Boeing Company Div Legacy Boeing Hb1
5961-00-910-6357 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
BS48179 Trw Assemblies and Fasteners Group (USA)
2591 PRIMARY Heyco Inc Dba Heyco Products (USA)
BS48179 Trw Assemblies and Fasteners Group Fasteners Div (USA)
62PP012BG09 PRIMARY Micro Plastics Inc (USA)
BS48179 PRIMARY Edwin B. Stimpson Company, Inc. Dba Stimpson (USA)
62MP0187 PRIMARY Micro Plastics Inc (USA)
2593 PRIMARY Heyco Inc Dba Heyco Products (USA)
BS48179 Trw Canada Limitedunited-Carr Div (CAN)
Related Parts
5340-01-388-0496SUCCESSOR
WHEEL,CASTER
5950-00-068-7943INTERCHANGEABLE
TRANSFORMER,POWER
577R593H01
6220-00-115-5038INTERCHANGEABLE
LENS,LIGHT
259-001-GRN
5330-00-392-5368INTERCHANGEABLE
SEAL,PLAIN ENCASED
25935
5330-00-433-1475INTERCHANGEABLE
GASKET
5999-00-480-2564INTERCHANGEABLE
CONTACT,ELECTRICAL
2593
6510-00-559-3200INTERCHANGEABLE
BANDAGE,ELASTIC
3020-00-772-7909INTERCHANGEABLE
GEAR,SPUR
2593
5961-00-905-1817INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
479-0721-003
5961-00-910-6357INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6550-01-023-7977INTERCHANGEABLE
TEST KIT,BILIRUBIN DETERMINATION
2591
6665-01-024-1769INTERCHANGEABLE
ION CHAMBER

Frequently Asked Questions

What is NSN 5340-00-690-8891?

NSN 5340-00-690-8891 is a Button,plug, manufactured by Heyco Inc Dba Heyco Products, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-690-8891?

NSN 5340-00-690-8891 has 8 cross-referenced part numbers: BS48179 (Trw Assemblies and Fasteners Group), 2591 (Heyco Inc Dba Heyco Products), BS48179 (Trw Assemblies and Fasteners Group Fasteners Div), 62PP012BG09 (Micro Plastics Inc), BS48179 (Edwin B. Stimpson Company, Inc. Dba Stimpson) and 3 more.

What NSN replaces 5340-00-690-8891?

There are 12 known substitutes for 5340-00-690-8891: 5340-01-388-0496, 5950-00-068-7943, 6220-00-115-5038 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2591?

Key specifications for 2591: Head Height: 0.063 INCHES NOMINAL IN; Prong Outside Diameter: 0.188 INCHES NOMINAL IN; Surface Treatment: CADMIUM; Material Accommodated Thickness: 0.037 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-690-8891 still in active supply?

NSN 5340-00-690-8891 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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