PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4621Hoist,chain

Columbus Mckinnon Corp · NSN 3950-01-344-0633 · FSC 3950 · No Item Name Available
Verified by PartsTable
NSN 3950-01-344-0633 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-344-0633. Primary manufacturer part number: 4621.
Features
  • Hoist,chain — FSC 3950
  • Load Element Quantity Per Hook: 1
  • Load Rating: 500.000 POUNDS MAXIMUM LBS
  • Braking Method: MANUAL
  • Center to Center Distance Between Load Elements: 1.100 FEET NOMINAL FT
  • Hook Quantity: 2
  • Mounting Method: HOOK SUSPENSION
  • Raised Position Distance Between Suspension Hook and Load Hook Bearing Surface: 12.875 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Hoist,chain, cataloged under National Stock Number 3950-01-344-0633, is classified within Federal Supply Class 3950 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Columbus Mckinnon Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN3950-01-344-0633
Primary Part Number4621
Item NameHoist,chain
FSC / FSG3950 / 39 — No Item Name Available
ManufacturerColumbus Mckinnon Corp
StatusACTIVE
Load Element Quantity Per Hook1
Load Rating500.000 POUNDS MAXIMUM LBS
Braking MethodMANUAL
Center to Center Distance Between Load Elements1.100 FEET NOMINAL FT
Hook Quantity2
Mounting MethodHOOK SUSPENSION
Raised Position Distance Between Suspension Hook and Load Hook Bearing Surface12.875 INCHES NOMINAL IN
Operation MethodHAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5996-00-110-5909462-1 INTERCHANGEABLE
Amplifier,direct Current
General Microwave Corporation Div Kratos Microwave Electronics
5950-00-303-54038007685 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Aviation and Missile Command
5920-00-350-91814621 INTERCHANGEABLE
Fuseholder,block
Cole Hersee Company
5960-00-912-3982SMC457355 INTERCHANGEABLE
Electron Tube
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-046-72694621-00 INTERCHANGEABLE
Disk,valve
Pentair Filtration Solutions, Llc
5985-01-049-3386 INTERCHANGEABLE
Dummy Load,electrical
5840-01-101-654646-2-1 INTERCHANGEABLE
Gear Train Assembly
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
4720-01-215-874446-21 INTERCHANGEABLE
Hose,nonmetallic
Vapor Blast Manufacturing Co
5340-01-235-195711606 ITEM 4621 INTERCHANGEABLE
Seat,helical Compression Spring
Imi Cash Valve Inc
3020-01-265-2641461-1 INTERCHANGEABLE
Gear Cluster
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
Cross-Reference Index
Part NumberManufacturer
4621 Columbus Mckinnon Corporation Dba Chester Hoist Div Ohio Operations - Lisbon (USA)
4621 Columbus Mckinnon Corp Cm Hoist Div (USA)
4621 PRIMARY Columbus Mckinnon Corp (USA)
Related Parts
5996-00-110-5909INTERCHANGEABLE
AMPLIFIER,DIRECT CURRENT
462-1
5950-00-303-5403INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
8007685
5920-00-350-9181INTERCHANGEABLE
FUSEHOLDER,BLOCK
4621
5960-00-912-3982INTERCHANGEABLE
ELECTRON TUBE
SMC457355
4820-01-046-7269INTERCHANGEABLE
DISK,VALVE
4621-00
5985-01-049-3386INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5840-01-101-6546INTERCHANGEABLE
GEAR TRAIN ASSEMBLY
46-2-1
4720-01-215-8744INTERCHANGEABLE
HOSE,NONMETALLIC
46-21
5340-01-235-1957INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
11606 ITEM 4621
3020-01-265-2641INTERCHANGEABLE
GEAR CLUSTER
461-1
2540-01-446-9491INTERCHANGEABLE
ARM,WINDSHIELD WIPER
46-21
3950-01-594-9910INTERCHANGEABLE
WINCH,DRUM,HAND OPERATED
462 1

Frequently Asked Questions

What is NSN 3950-01-344-0633?

NSN 3950-01-344-0633 is a Hoist,chain, manufactured by Columbus Mckinnon Corp, classified under FSC 3950 (No Item Name Available). Status: active.

What are the part numbers for NSN 3950-01-344-0633?

NSN 3950-01-344-0633 has 3 cross-referenced part numbers: 4621 (Columbus Mckinnon Corporation Dba Chester Hoist Div Ohio Operations - Lisbon), 4621 (Columbus Mckinnon Corp Cm Hoist Div), 4621 (Columbus Mckinnon Corp).

What NSN replaces 3950-01-344-0633?

There are 12 known substitutes for 3950-01-344-0633: 5996-00-110-5909, 5950-00-303-5403, 5920-00-350-9181 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4621?

Key specifications for 4621: Load Element Quantity Per Hook: 1; Load Rating: 500.000 POUNDS MAXIMUM LBS; Braking Method: MANUAL; Center to Center Distance Between Load Elements: 1.100 FEET NOMINAL FT. 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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