PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2543Screw,machine

Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron · NSN 5305-00-239-7858 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-239-7858 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-239-7858. Primary manufacturer part number: 2543.
Features
  • Screw,machine — FSC 5305
  • Screw Material: PLASTIC POLYHEXAMETHYLENE AMIDE
  • Thread Length: 0.157 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Internal Drive Style: SLOT
  • Head Height: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 9S STYLE
  • Screw Material Document and Classification: MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-239-7858, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 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
NSN5305-00-239-7858
Primary Part Number2543
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHalsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
StatusCANCELLED
Screw MaterialPLASTIC POLYHEXAMETHYLENE AMIDE
Thread Length0.157 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Internal Drive StyleSLOT
Head Height0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
Nondefinitive Spec/std Data1 TYPE AND 9S STYLE
Screw Material Document and ClassificationMIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
Thread DirectionRIGHT-HAND
Fastener Length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Nominal Thread Diameter0.138 INCHES IN
Thread Quantity Per Inch32
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Head StylePAN NO. 2
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5975-00-089-18802531 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
4730-00-172-0034AS15003-6P INTERCHANGEABLE
Fitting,lubrication
Sae International Dba Sae International
5120-00-288-7786024-0295-00 INTERCHANGEABLE
Alignment Tool,electronic Equipm
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6110-00-295-2754 INTERCHANGEABLE
Panel,power Distribution
2010-00-362-68192-541 INTERCHANGEABLE
Cover,bearing
Hatch & Kirk, Inc.
5950-00-457-57503061007 INTERCHANGEABLE
Transformer,radio Frequency
L3harris Interstate Electronics Corporation
6685-00-526-4265FAXA141274 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
Wika Holding Lp
5950-00-893-70352123798 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5365-01-178-1571 INTERCHANGEABLE
Spacer
2910-01-247-2200849269 INTERCHANGEABLE
Tank,fuel,engine
Warner Robins Air Logistics Center
Cross-Reference Index
Part NumberManufacturer
2543 Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
AA55624-43 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS18212-26 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
418653-26 Raytheon Company Dba Raytheon (USA)
2543 Dialight Corporation (USA)
010632B025 Micro Plastics Inc (USA)
9920C Gc/waldom Inc (USA)
2360-0282 Hewlett-Packard Company Dba HP (USA)
Related Parts
5975-00-089-1880INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2531
4730-00-172-0034INTERCHANGEABLE
FITTING,LUBRICATION
AS15003-6P
5120-00-288-7786INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
024-0295-00
6110-00-295-2754INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
2010-00-362-6819INTERCHANGEABLE
COVER,BEARING
2-541
5950-00-457-5750INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
3061007
6685-00-526-4265INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
FAXA141274
5950-00-893-7035INTERCHANGEABLE
TRANSFORMER,POWER
2123798
5365-01-178-1571INTERCHANGEABLE
SPACER
2910-01-247-2200INTERCHANGEABLE
TANK,FUEL,ENGINE
849269
4460-01-463-3180INTERCHANGEABLE
CHROMATE PAINT FLTR
3010-01-567-1910INTERCHANGEABLE
TORQUE CONVERTER,NONVEHICULAR
2543

Frequently Asked Questions

What is NSN 5305-00-239-7858?

NSN 5305-00-239-7858 is a Screw,machine, manufactured by Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-239-7858?

NSN 5305-00-239-7858 has 9 cross-referenced part numbers: 2543 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron), AA55624-43 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), FFS92 (Federal Specifications Promulgated by General Services Administration Washington DC), MS18212-26 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 418653-26 (Raytheon Company Dba Raytheon) and 4 more.

What NSN replaces 5305-00-239-7858?

There are 12 known substitutes for 5305-00-239-7858: 5975-00-089-1880, 4730-00-172-0034, 5120-00-288-7786 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2543?

Key specifications for 2543: Screw Material: PLASTIC POLYHEXAMETHYLENE AMIDE; Thread Length: 0.157 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Internal Drive Style: SLOT; Head Height: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-239-7858 still in active supply?

NSN 5305-00-239-7858 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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