PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MODEL NO 344Reamer,complete

Ridge Tool Company · NSN 3450-01-422-4551 · FSC 3450 · No Item Name Available
Verified by PartsTable
NSN 3450-01-422-4551 — this item is cataloged by the U.S. Government under National Stock Number 3450-01-422-4551. Primary manufacturer part number: MODEL NO 344.
Features
  • Reamer,complete — FSC 3450
  • 2 verified cross-references
  • Primary manufacturer: Ridge Tool Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reamer,complete, cataloged under National Stock Number 3450-01-422-4551, is classified within Federal Supply Class 3450 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Ridge Tool Company. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3450-01-422-4551
Primary Part NumberMODEL NO 344
Item NameReamer,complete
FSC / FSG3450 / 34 — No Item Name Available
ManufacturerRidge Tool Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-100-0269528 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3030-00-528-4609 INTERCHANGEABLE
Belt,v
4820-00-618-5445346-1-2 INTERCHANGEABLE
Valve,check
Crane Co Div Valve Div
4820-00-640-04472275TYPEYSIZE1-14 INTERCHANGEABLE
Valve,check
Crane Co Div Valve Div
5340-01-560-105734612 INTERCHANGEABLE
Cover,protective,dust and Moistu
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
MODEL NO 344 PRIMARY Ridge Tool Company (USA)
34612 Ridge Tool Company (USA)
Related Parts
3110-00-100-0269INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
528
3030-00-528-4609INTERCHANGEABLE
BELT,V
4820-00-618-5445INTERCHANGEABLE
VALVE,CHECK
346-1-2
4820-00-640-0447INTERCHANGEABLE
VALVE,CHECK
2275TYPEYSIZE1-14
5340-01-560-1057INTERCHANGEABLE
COVER,PROTECTIVE,DUST AND MOISTU
34612

Frequently Asked Questions

What is NSN 3450-01-422-4551?

NSN 3450-01-422-4551 is a Reamer,complete, manufactured by Ridge Tool Company, classified under FSC 3450 (No Item Name Available). Status: active.

What are the part numbers for NSN 3450-01-422-4551?

NSN 3450-01-422-4551 has 2 cross-referenced part numbers: MODEL NO 344 (Ridge Tool Company), 34612 (Ridge Tool Company).

What NSN replaces 3450-01-422-4551?

There are 5 known substitutes for 3450-01-422-4551: 3110-00-100-0269, 3030-00-528-4609, 4820-00-618-5445 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MODEL NO 344?

Key specifications for MODEL NO 344: End Item Identification: TH THREADING MACHINE; Special Features: REAMER COMPLETE 344. 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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