PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4XM71Ladder,safety Step

W.w. Grainger, Inc. Div Government Sales Division · NSN 5440-01-448-2857 · FSC 5440 · No Item Name Available
Verified by PartsTable
NSN 5440-01-448-2857 — this item is cataloged by the U.S. Government under National Stock Number 5440-01-448-2857. Primary manufacturer part number: 4XM71.
Features
  • Ladder,safety Step — FSC 5440
  • Functional Description: STEP LADDER IS USED FOR INSPECTION AND MAINTENANCE ACTIONS THAT ARE BEYOND THE NORMAL REACH AND LINE-OF-SIGHT OF THE AVERAGE PERSON
  • 2 verified cross-references
  • Primary manufacturer: W.w. Grainger, Inc. Div Government Sales Division
Applications
  • Construction site scaffolding
  • Facility repair and renovation
  • Bridge and road infrastructure
General Description

The Ladder,safety Step, cataloged under National Stock Number 5440-01-448-2857, is classified within Federal Supply Class 5440 (No Item Name Available) of the Prefabricated Structures and Scaffolding group. The primary manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5440-01-448-2857
Primary Part Number4XM71
Item NameLadder,safety Step
FSC / FSG5440 / 54 — No Item Name Available
ManufacturerW.w. Grainger, Inc. Div Government Sales Division
StatusACTIVE
Functional DescriptionSTEP LADDER IS USED FOR INSPECTION AND MAINTENANCE ACTIONS THAT ARE BEYOND THE NORMAL REACH AND LINE-OF-SIGHT OF THE AVERAGE PERSON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5999-00-406-8771373B331G09 INTERCHANGEABLE
Contact,electrical
Eaton Corporation Dba Eaton Inoac
5998-01-024-7477K136 INTERCHANGEABLE
Circuit Card Assembly
Compaq Federal Llc
3020-01-064-6126K136 INTERCHANGEABLE
Gear,spur
Dynalec Corporation
Cross-Reference Index
Part NumberManufacturer
4XM71 PRIMARY W.w. Grainger, Inc. Div Government Sales Division (USA)
K-136 C&h Distributors, Llc (USA)
Related Parts
5999-00-406-8771INTERCHANGEABLE
CONTACT,ELECTRICAL
373B331G09
5998-01-024-7477INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
K136
3020-01-064-6126INTERCHANGEABLE
GEAR,SPUR
K136

Frequently Asked Questions

What is NSN 5440-01-448-2857?

NSN 5440-01-448-2857 is a Ladder,safety Step, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 5440 (No Item Name Available). Status: active.

What are the part numbers for NSN 5440-01-448-2857?

NSN 5440-01-448-2857 has 2 cross-referenced part numbers: 4XM71 (W.w. Grainger, Inc. Div Government Sales Division), K-136 (C&h Distributors, Llc).

What NSN replaces 5440-01-448-2857?

There are 3 known substitutes for 5440-01-448-2857: 5999-00-406-8771, 5998-01-024-7477, 3020-01-064-6126. Verify interchangeability with system specifications before substitution.

What are the specifications of 4XM71?

Key specifications for 4XM71: Functional Description: STEP LADDER IS USED FOR INSPECTION AND MAINTENANCE ACTIONS THAT ARE BEYOND THE NORMAL REACH AND LINE-OF-SIGHT OF THE AVERAGE PERSON. 1 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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