PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

534Extension Shaft

Birnbach Co Inc · NSN 3040-00-503-0018 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-503-0018 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-503-0018. Primary manufacturer part number: 534.
Features
  • Extension Shaft — FSC 3040
  • Material: COPPER ALLOY
  • Shaft End Design: FEMALE
  • End Type: INTEGRAL COUPLING
  • Style Designator: THREADED SOCKET
  • Outside Diameter: 0.500 INCHES NOMINAL IN
  • Internal Thread Length: 0.375 INCHES NOMINAL IN
  • Length: 1.125 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Extension Shaft, cataloged under National Stock Number 3040-00-503-0018, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Birnbach Co Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN3040-00-503-0018
Primary Part Number534
Item NameExtension Shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerBirnbach Co Inc
StatusACTIVE
MaterialCOPPER ALLOY
Shaft End DesignFEMALE
End TypeINTEGRAL COUPLING
Style DesignatorTHREADED SOCKET
Outside Diameter0.500 INCHES NOMINAL IN
Internal Thread Length0.375 INCHES NOMINAL IN
Length1.125 INCHES NOMINAL IN
Shaft End ConfigurationROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-162-596113375 INTERCHANGEABLE
Packing,ram
Hein Werner Corp
5365-00-241-9980534 INTERCHANGEABLE
Bushing
Stothert & Pitt
4130-00-422-51405349615 INTERCHANGEABLE
Filter Element,air Conditioning
International Business Machines Corporation Dba IBM
2530-00-450-9345H-19381 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Chrysler Corp Service and Parts Opns
5360-00-492-0457 INTERCHANGEABLE
Spring,helical,compression
5905-00-554-93562100-3624 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Keysight Technologies Inc
5999-00-721-0902102105P1 INTERCHANGEABLE
Clip,electrical
Lockheed Martin Corporation Div Rms
5970-00-837-3765 INTERCHANGEABLE
Tape,insulation,electrical
5975-00-939-5632259 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5905-01-019-3462 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Cross-Reference Index
Part NumberManufacturer
534 PRIMARY Birnbach Co Inc (USA)
Related Parts
5330-00-162-5961INTERCHANGEABLE
PACKING,RAM
13375
5365-00-241-9980INTERCHANGEABLE
BUSHING
534
4130-00-422-5140INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
5349615
2530-00-450-9345INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
H-19381
5360-00-492-0457INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5905-00-554-9356INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2100-3624
5999-00-721-0902INTERCHANGEABLE
CLIP,ELECTRICAL
102105P1
5970-00-837-3765INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
5975-00-939-5632INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
259
5905-01-019-3462INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
5330-01-071-0020INTERCHANGEABLE
SEAL NUT
5905-01-141-8180INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2100-3623

Frequently Asked Questions

What is NSN 3040-00-503-0018?

NSN 3040-00-503-0018 is a Extension Shaft, manufactured by Birnbach Co Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-503-0018?

NSN 3040-00-503-0018 has 1 cross-referenced part number: 534 (Birnbach Co Inc).

What NSN replaces 3040-00-503-0018?

There are 12 known substitutes for 3040-00-503-0018: 5330-00-162-5961, 5365-00-241-9980, 4130-00-422-5140 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 534?

Key specifications for 534: Material: COPPER ALLOY; Shaft End Design: FEMALE; End Type: INTEGRAL COUPLING; Style Designator: THREADED SOCKET. 8 total characteristics are documented in the Federal Logistics Information System.

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