PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4551-5Spacer

Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives · NSN 5365-01-191-4517 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-191-4517 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-191-4517. Primary manufacturer part number: 4551-5.
Features
  • Spacer — FSC 5365
  • 1 verified cross-reference
  • Primary manufacturer: Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Spacer, cataloged under National Stock Number 5365-01-191-4517, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. 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.

Catalog Facts
Item NameSpacer
FSC / FSG5365 — No Item Name Available (FSG 53)
ManufacturersSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (CAGE 41387)
Technical Specifications
ParameterValue
NSN5365-01-191-4517
Primary Part Number4551-5
Item NameSpacer
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3455-00-189-91651-1561-1500 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
New York Twist Drill Inc
5940-00-912-4773 INTERCHANGEABLE
Terminal,stud
3020-01-370-822145515 INTERCHANGEABLE
Pulley,groove
Tyco Fire Products Lp
Cross-Reference Index
Part NumberManufacturer
4551-5 PRIMARY Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
Related Parts
3455-00-189-9165INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
1-1561-1500
5940-00-912-4773INTERCHANGEABLE
TERMINAL,STUD
3020-01-370-8221INTERCHANGEABLE
PULLEY,GROOVE
45515

Frequently Asked Questions

What is NSN 5365-01-191-4517?

NSN 5365-01-191-4517 is a Spacer, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-191-4517?

NSN 5365-01-191-4517 has 1 cross-referenced part number: 4551-5 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).

What NSN replaces 5365-01-191-4517?

There are 3 known substitutes for 5365-01-191-4517: 3455-00-189-9165, 5940-00-912-4773, 3020-01-370-8221. Verify interchangeability with system specifications before substitution.

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