PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

412-344Wrench,ratchet

Port Clinton Mfg Co · NSN 5120-00-779-4481 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-779-4481 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-779-4481. Primary manufacturer part number: 412-344.
Features
  • Wrench,ratchet — FSC 5120
  • Torque Capacity: 150.0 INCH-POUNDS NOMINAL IN
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Special Markings: WRENCH SIZE
  • Style Designator: STRAIGHT SINGLE HEAD
  • Wrenching Surface Size: 0.344 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,ratchet, cataloged under National Stock Number 5120-00-779-4481, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Port Clinton Mfg Co. Government technical data includes 8 verified specifications, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-779-4481
Primary Part Number412-344
Item NameWrench,ratchet
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerPort Clinton Mfg Co
StatusACTIVE
Torque Capacity150.0 INCH-POUNDS NOMINAL IN
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Special MarkingsWRENCH SIZE
Style DesignatorSTRAIGHT SINGLE HEAD
Wrenching Surface Size0.344 INCHES NOMINAL SINGLE END IN
Head Thickness0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-779-4476412-188 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4477412-219 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4478412-250 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4479412-281 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4480412-313 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4483412-438 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4484412-469 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4485412-500 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
Cross-Reference Index
Part NumberManufacturer
412-344 PRIMARY Port Clinton Mfg Co (USA)
5120-779-4476 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-779-4476INTERCHANGEABLE
WRENCH,RATCHET
412-188
5120-00-779-4477INTERCHANGEABLE
WRENCH,RATCHET
412-219
5120-00-779-4478INTERCHANGEABLE
WRENCH,RATCHET
412-250
5120-00-779-4479INTERCHANGEABLE
WRENCH,RATCHET
412-281
5120-00-779-4480INTERCHANGEABLE
WRENCH,RATCHET
412-313
5120-00-779-4483INTERCHANGEABLE
WRENCH,RATCHET
412-438
5120-00-779-4484INTERCHANGEABLE
WRENCH,RATCHET
412-469
5120-00-779-4485INTERCHANGEABLE
WRENCH,RATCHET
412-500

Frequently Asked Questions

What is NSN 5120-00-779-4481?

NSN 5120-00-779-4481 is a Wrench,ratchet, manufactured by Port Clinton Mfg Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-779-4481?

NSN 5120-00-779-4481 has 2 cross-referenced part numbers: 412-344 (Port Clinton Mfg Co), 5120-779-4476 (General Services Administration Federal Supply Service).

What NSN replaces 5120-00-779-4481?

There are 8 known substitutes for 5120-00-779-4481: 5120-00-779-4476, 5120-00-779-4477, 5120-00-779-4478 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 412-344?

Key specifications for 412-344: Torque Capacity: 150.0 INCH-POUNDS NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Material: STEEL OVERALL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL. 9 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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