PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-120Block,step,machinists'

Boughton Engineering Limited · NSN 5220-01-345-7645 · FSC 5220 · No Item Name Available
Verified by PartsTable
NSN 5220-01-345-7645 — this item is cataloged by the U.S. Government under National Stock Number 5220-01-345-7645. Primary manufacturer part number: D-120.
Features
  • Block,step,machinists' — FSC 5220
  • 3 verified cross-references
  • Primary manufacturer: Boughton Engineering Limited
Applications
  • Quality assurance and inspection
  • Precision measurement and calibration
  • Laboratory and test equipment
General Description

The Block,step,machinists', cataloged under National Stock Number 5220-01-345-7645, is classified within Federal Supply Class 5220 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is Boughton Engineering Limited. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBlock,step,machinists'
FSC / FSG5220 — No Item Name Available (FSG 52)
ManufacturersBoughton Engineering Limited (CAGE K4629); Oldbury Uk Ltd (CAGE K7978); Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons (CAGE 80604)
Technical Specifications
ParameterValue
NSN5220-01-345-7645
Primary Part NumberD-120
Item NameBlock,step,machinists'
FSC / FSG5220 / 52 — No Item Name Available
ManufacturerBoughton Engineering Limited
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5120-00-224-73305120-00-224-7330 INTERCHANGEABLE
Jack,hydraulic,hand
General Services Administration Federal Supply Service
6850-00-483-25735R87 INTERCHANGEABLE
Developer,indirect Electrostatic
Xerox Corporation
4720-00-997-8731100R3-20 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
2530-01-122-9688 INTERCHANGEABLE
Disk Brake Shoe
5940-01-136-2540M83519/1-2 INTERCHANGEABLE
Splice,conductor
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
D-120 Boughton Engineering Limited (GBR)
D-120 Oldbury Uk Ltd (GBR)
D-120 Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons (USA)
Related Parts
5120-00-224-7330INTERCHANGEABLE
JACK,HYDRAULIC,HAND
5120-00-224-7330
6850-00-483-2573INTERCHANGEABLE
DEVELOPER,INDIRECT ELECTROSTATIC
5R87
4720-00-997-8731INTERCHANGEABLE
HOSE,NONMETALLIC
100R3-20
2530-01-122-9688INTERCHANGEABLE
DISK BRAKE SHOE
5940-01-136-2540INTERCHANGEABLE
SPLICE,CONDUCTOR
M83519/1-2

Frequently Asked Questions

What is NSN 5220-01-345-7645?

NSN 5220-01-345-7645 is a Block,step,machinists', manufactured by Boughton Engineering Limited, classified under FSC 5220 (No Item Name Available). Status: active.

What are the part numbers for NSN 5220-01-345-7645?

NSN 5220-01-345-7645 has 3 cross-referenced part numbers: D-120 (Boughton Engineering Limited), D-120 (Oldbury Uk Ltd), D-120 (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons).

What NSN replaces 5220-01-345-7645?

There are 5 known substitutes for 5220-01-345-7645: 5120-00-224-7330, 6850-00-483-2573, 4720-00-997-8731 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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