PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

412-250Wrench,ratchet

Port Clinton Mfg Co · NSN 5120-00-779-4478 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-779-4478 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-779-4478. Primary manufacturer part number: 412-250.
Features
  • Wrench,ratchet — FSC 5120
  • Special Markings: WRENCH SIZE
  • Style Designator: STRAIGHT SINGLE HEAD
  • Wrenching Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Torque Capacity: 90.0 INCH-POUNDS NOMINAL IN
  • Head Thickness: 0.218 INCHES NOMINAL IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,ratchet, cataloged under National Stock Number 5120-00-779-4478, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-779-4478
Primary Part Number412-250
Item NameWrench,ratchet
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerPort Clinton Mfg Co
StatusACTIVE
Special MarkingsWRENCH SIZE
Style DesignatorSTRAIGHT SINGLE HEAD
Wrenching Surface Size0.250 INCHES NOMINAL SINGLE END IN
Torque Capacity90.0 INCH-POUNDS NOMINAL IN
Head Thickness0.218 INCHES NOMINAL IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5920-00-229-1309 INTERCHANGEABLE
Fuse,cartridge
5120-00-779-4476412-188 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4477412-219 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4479412-281 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4480412-313 INTERCHANGEABLE
Wrench,ratchet
Port Clinton Mfg Co
5120-00-779-4481412-344 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
5360-00-942-7141 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
RT20972 Safran Transmission Systems (FRA)
412-250 Stride Tool Inc. Dba Stride Milbar Company (USA)
5120-779-4476 General Services Administration Federal Supply Service (USA)
412-250 PRIMARY Port Clinton Mfg Co (USA)
Related Parts
5920-00-229-1309INTERCHANGEABLE
FUSE,CARTRIDGE
5120-00-779-4476INTERCHANGEABLE
WRENCH,RATCHET
412-188
5120-00-779-4477INTERCHANGEABLE
WRENCH,RATCHET
412-219
5120-00-779-4479INTERCHANGEABLE
WRENCH,RATCHET
412-281
5120-00-779-4480INTERCHANGEABLE
WRENCH,RATCHET
412-313
5120-00-779-4481INTERCHANGEABLE
WRENCH,RATCHET
412-344
5120-00-779-4483INTERCHANGEABLE
WRENCH,RATCHET
412-438
5120-00-779-4484INTERCHANGEABLE
WRENCH,RATCHET
412-469
5120-00-779-4485INTERCHANGEABLE
WRENCH,RATCHET
412-500
5360-00-942-7141INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4240-01-140-0282INTERCHANGEABLE
SPECTACLES,INDUSTRIAL
S0250X

Frequently Asked Questions

What is NSN 5120-00-779-4478?

NSN 5120-00-779-4478 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 5120-00-779-4478?

NSN 5120-00-779-4478 has 4 cross-referenced part numbers: RT20972 (Safran Transmission Systems), 412-250 (Stride Tool Inc. Dba Stride Milbar Company), 5120-779-4476 (General Services Administration Federal Supply Service), 412-250 (Port Clinton Mfg Co).

What NSN replaces 5120-00-779-4478?

There are 11 known substitutes for 5120-00-779-4478: 5920-00-229-1309, 5120-00-779-4476, 5120-00-779-4477 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 412-250?

Key specifications for 412-250: Special Markings: WRENCH SIZE; Style Designator: STRAIGHT SINGLE HEAD; Wrenching Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Torque Capacity: 90.0 INCH-POUNDS NOMINAL IN. 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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