PartsTable TECHNICAL DATA SHEET
NSN 5120-01-074-0789Government record, cited

Wrench, Open End5120-01-074-0789

NSN 5120-01-074-0789 · NIIN 010740789 · Part number W-407A
Ngk Metals Corporation Dba N G K Berylco · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 61452
Government record, cited
NSN 5120-01-074-0789 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-074-0789. Manufacturer of record part number: W-407A.
Also searched as  5120-01-074-0789 · 5120010740789 · NIIN 010740789 · 01-074-0789 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 61452 · W-407A · 2889786-4
Nearby stock numbers  ·
Features
  • Wrench,open End — FSC 5120
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 0.875 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 1.000 INCHES NOMINAL SECOND END IN
  • Style Designator: DOUBLE HEAD
  • Features Provided: NONSPARKING AND NONMAGNETIC
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
Identification
  • NSN: 5120-01-074-0789
  • NIIN: 010740789
  • FSC: 5120 — Hand Tools, Nonedged, Nonpowered
  • FSG: 51 — Hand Tools
  • Primary part number: W-407A
  • Manufacturer: Ngk Metals Corporation Dba N G K Berylco
General Description

The Wrench,open End, cataloged under National Stock Number 5120-01-074-0789, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Ngk Metals Corporation Dba N G K Berylco. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-074-0789
Primary Part NumberW-407A
Item NameWrench,open End
FSC / FSG5120 / 51 — Hand Tools, Nonedged, Nonpowered
ManufacturerNgk Metals Corporation Dba N G K Berylco
StatusACTIVE
Large End Head Angle15.0 DEGREES NOMINAL
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size0.875 INCHES NOMINAL FIRST END IN
Wrenching Surface Size1.000 INCHES NOMINAL SECOND END IN
Style DesignatorDOUBLE HEAD
Features ProvidedNONSPARKING AND NONMAGNETIC
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
W-407A PRIMARY Ngk Metals Corporation Dba N G K Berylco (USA)
2889786-4 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642
ADAPTER,TORQUE WRENCH
5120-00-001-2644
ADAPTER,TORQUE WRENCH
5120-00-001-2650
INSERTER,SEAL
5120-00-001-2651
5120-00-001-2651 · Item name not on file
5120-00-001-2652
INSTALLING TOOL,SHAFT
5120-00-001-2653
REMOVER,PREFORMED PACKING
5120-00-001-2654
REMOVER,PREFORMED PACKING
5120-00-001-2655
SOCKET,WRENCH,FACE SPANNER

Frequently Asked Questions

What is NSN 5120-01-074-0789?

NSN 5120-01-074-0789 is a Wrench,open End, manufactured by Ngk Metals Corporation Dba N G K Berylco, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What part numbers are listed for NSN 5120-01-074-0789?

NSN 5120-01-074-0789 has 2 manufacturer part numbers on file: W-407A (Ngk Metals Corporation Dba N G K Berylco), 2889786-4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What are the specifications of W-407A?

Key specifications for W-407A: Large End Head Angle: 15.0 DEGREES NOMINAL; Small End Head Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Size: 0.875 INCHES NOMINAL FIRST END IN; Wrenching Surface Size: 1.000 INCHES NOMINAL SECOND END IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-074-0789 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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