PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

502644Harness,safety,industrial

Msa Inc Dba Mine Safety Fall Protection · NSN 4240-01-421-0859 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-421-0859 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-421-0859. Primary manufacturer part number: 502644.
Features
  • Harness,safety,industrial — FSC 4240
  • Adjustable Leg Support: FURNISHED
  • Shoulder Strap Width: 2.000 INCHES NOMINAL IN
  • Waistband Width: 2.000 INCHES NOMINAL IN
  • Material: FABRIC, NYLON
  • Shoulder Strap Adjustability: ADJUSTABLE
  • Lifeline: NOT INCLUDED
  • Adjustment Method: SLIDING BUCKLE
Applications
  • Applications requiring Fabric, Nylon construction
General Description

The Harness,safety,industrial, cataloged under National Stock Number 4240-01-421-0859, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Msa Inc Dba Mine Safety Fall Protection. Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-421-0859
Primary Part Number502644
Item NameHarness,safety,industrial
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMsa Inc Dba Mine Safety Fall Protection
StatusACTIVE
Adjustable Leg SupportFURNISHED
Shoulder Strap Width2.000 INCHES NOMINAL IN
Waistband Width2.000 INCHES NOMINAL IN
MaterialFABRIC, NYLON
Shoulder Strap AdjustabilityADJUSTABLE
LifelineNOT INCLUDED
Adjustment MethodSLIDING BUCKLE
Waistband Overall Length52.000 INCHES NOMINAL IN
Waistband Adjustment MethodTONGUE BUCKLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4240-00-022-2522A-NGH-C-1-8-1-3-2-1-3-0-0-6-0-0 INTERCHANGEABLE
Harness,safety,industrial
Mine Safety Appliances Company
5310-00-058-7343 INTERCHANGEABLE
Nut,self-Locking,hexagon
5340-01-666-741450264-4 INTERCHANGEABLE
Clamp,block
Star Technologies Llc
Cross-Reference Index
Part NumberManufacturer
502644 PRIMARY Msa Inc Dba Mine Safety Fall Protection (USA)
Related Parts
4240-00-022-2522INTERCHANGEABLE
HARNESS,SAFETY,INDUSTRIAL
A-NGH-C-1-8-1-3-2-1-3-0-0-6-0-0
5310-00-058-7343INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5340-01-666-7414INTERCHANGEABLE
CLAMP,BLOCK
50264-4

Frequently Asked Questions

What is NSN 4240-01-421-0859?

NSN 4240-01-421-0859 is a Harness,safety,industrial, manufactured by Msa Inc Dba Mine Safety Fall Protection, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-421-0859?

NSN 4240-01-421-0859 has 1 cross-referenced part number: 502644 (Msa Inc Dba Mine Safety Fall Protection).

What NSN replaces 4240-01-421-0859?

There are 3 known substitutes for 4240-01-421-0859: 4240-00-022-2522, 5310-00-058-7343, 5340-01-666-7414. Verify interchangeability with system specifications before substitution.

What are the specifications of 502644?

Key specifications for 502644: Adjustable Leg Support: FURNISHED; Shoulder Strap Width: 2.000 INCHES NOMINAL IN; Waistband Width: 2.000 INCHES NOMINAL IN; Material: FABRIC, NYLON. 10 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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