PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-287-B9Block,line,masonry

Bon Tool Co · NSN 5120-01-124-2647 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-124-2647 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-124-2647. Primary manufacturer part number: 11-287-B9.
Features
  • Block,line,masonry — FSC 5120
  • General Characteristics Item Description: PLASTIC; 4-1/4 IN. LG; FURNISHED IN PAIRS IN
  • 6 verified cross-references
  • Primary manufacturer: Bon Tool Co
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Block,line,masonry, cataloged under National Stock Number 5120-01-124-2647, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Bon Tool Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-124-2647
Primary Part Number11-287-B9
Item NameBlock,line,masonry
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBon Tool Co
StatusACTIVE
General Characteristics Item DescriptionPLASTIC; 4-1/4 IN. LG; FURNISHED IN PAIRS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5970-00-295-8499B500475 INTERCHANGEABLE
Insulator,strain
Ohmite Holding, L.l.c.
Cross-Reference Index
Part NumberManufacturer
01 249 Goldblatt Tool Co Sub of Axia Inc (USA)
11-287-B9 PRIMARY Bon Tool Co (USA)
84389 01249 Goldblatt Tool Co Sub of Axia Inc (USA)
84389 01249 PRIMARY The Stanley Works Dba Stanley Proto (USA)
01 249 M7 Goldblatt Tool Co Sub of Axia Inc (USA)
BL349 PRIMARY Kraft Tool Co (USA)
Related Parts
5970-00-295-8499INTERCHANGEABLE
INSULATOR,STRAIN
B500475

Frequently Asked Questions

What is NSN 5120-01-124-2647?

NSN 5120-01-124-2647 is a Block,line,masonry, manufactured by Bon Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-124-2647?

NSN 5120-01-124-2647 has 6 cross-referenced part numbers: 01 249 (Goldblatt Tool Co Sub of Axia Inc), 11-287-B9 (Bon Tool Co), 84389 01249 (Goldblatt Tool Co Sub of Axia Inc), 84389 01249 (The Stanley Works Dba Stanley Proto), 01 249 M7 (Goldblatt Tool Co Sub of Axia Inc) and 1 more.

What NSN replaces 5120-01-124-2647?

There is 1 known substitute for 5120-01-124-2647: 5970-00-295-8499. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-287-B9?

Key specifications for 11-287-B9: Special Features: MASONRY TOOL; General Characteristics Item Description: PLASTIC; 4-1/4 IN. LG; FURNISHED IN PAIRS IN. 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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