PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40421Shaft,straight

Lake Shore Systems, Inc. · NSN 3040-01-320-9761 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-320-9761 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-320-9761. Primary manufacturer part number: 40421.
Features
  • Shaft,straight — FSC 3040
  • 1 verified cross-reference
  • Primary manufacturer: Lake Shore Systems, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shaft,straight, cataloged under National Stock Number 3040-01-320-9761, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Lake Shore Systems, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-320-9761
Primary Part Number40421
Item NameShaft,straight
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerLake Shore Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
7035-00-007-5158 INTERCHANGEABLE
Spring Retainer
3110-00-100-051514274 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5985-00-492-203510669380 INTERCHANGEABLE
Adapter,waveguide
Us Army Aviation and Missile Command
3040-00-515-04004501-207 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5998-01-217-9046004042-001 INTERCHANGEABLE
Circuit Card Assembly
Dynalec Corporation
6680-01-218-6897XM-36460-72-1500-W-L INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5365-01-274-320340421 INTERCHANGEABLE
Spacer,plate
Cleveland Range, Llc
2640-01-671-331940421 INTERCHANGEABLE
Valve,pneumatic Tire
Hutchinson Industries, Inc Div Defense and Industry
1630-01-693-552140-421 INTERCHANGEABLE
Wheel Assembly,aircraft
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
Cross-Reference Index
Part NumberManufacturer
40421 PRIMARY Lake Shore Systems, Inc. (USA)
Related Parts
7035-00-007-5158INTERCHANGEABLE
SPRING RETAINER
3110-00-100-0515INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
14274
5985-00-492-2035INTERCHANGEABLE
ADAPTER,WAVEGUIDE
10669380
3040-00-515-0400INTERCHANGEABLE
CONNECTING LINK,RIGID
4501-207
5998-01-217-9046INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
004042-001
6680-01-218-6897INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
XM-36460-72-1500-W-L
5365-01-274-3203INTERCHANGEABLE
SPACER,PLATE
40421
2640-01-671-3319INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
40421
1630-01-693-5521INTERCHANGEABLE
WHEEL ASSEMBLY,AIRCRAFT
40-421

Frequently Asked Questions

What is NSN 3040-01-320-9761?

NSN 3040-01-320-9761 is a Shaft,straight, manufactured by Lake Shore Systems, Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-320-9761?

NSN 3040-01-320-9761 has 1 cross-referenced part number: 40421 (Lake Shore Systems, Inc.).

What NSN replaces 3040-01-320-9761?

There are 9 known substitutes for 3040-01-320-9761: 7035-00-007-5158, 3110-00-100-0515, 5985-00-492-2035 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40421?

Key specifications for 40421: Special Features: SHAFT,SCREW (LH); End Item Identification: WELIN DAVIT WINCH. 2 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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