PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W-990SWrench,box

Ngk Metals Corporation Dba N G K Berylco · NSN 5120-00-060-8369 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-060-8369 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-060-8369. Primary manufacturer part number: W-990S.
Features
  • Wrench,box — FSC 5120
  • Wrenching Surface Size: 0.438 INCHES NOMINAL FIRST END IN
  • Features Provided: NONMAGNETIC AND NONSPARKING
  • Wrenching Surface Size: 0.500 INCHES NOMINAL SECOND END IN
  • Material: COPPER ALLOY OVERALL
  • Style Designator: SHALLOW ANGULAR OFFSET DOUBLE HEAD
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
  • 7 verified cross-references
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-060-8369, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ngk Metals Corporation Dba N G K Berylco. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-060-8369
Primary Part NumberW-990S
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerNgk Metals Corporation Dba N G K Berylco
StatusACTIVE
Wrenching Surface Size0.438 INCHES NOMINAL FIRST END IN
Features ProvidedNONMAGNETIC AND NONSPARKING
Wrenching Surface Size0.500 INCHES NOMINAL SECOND END IN
MaterialCOPPER ALLOY OVERALL
Style DesignatorSHALLOW ANGULAR OFFSET DOUBLE HEAD
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-00-277-5781 INTERCHANGEABLE
Wrench,box
Cross-Reference Index
Part NumberManufacturer
W990FN Cabot Corp Aluminum Master Alloy Business Unit (USA)
W-990S PRIMARY Ngk Metals Corporation Dba N G K Berylco (USA)
W-3120 PRIMARY Ampco Partners, Ltd. Dba Ampco Safety Tools (USA)
W-990S-2643 PRIMARY Ngk Metals Corporation Dba N G K Berylco (USA)
W-3120 Ampco Metal Inc. Dba Ampco Metal Inc (USA)
B107.9 TY1CL1 General Services Administration Federal Supply Service (USA)
B107.9 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-277-5781INTERCHANGEABLE
WRENCH,BOX

Frequently Asked Questions

What is NSN 5120-00-060-8369?

NSN 5120-00-060-8369 is a Wrench,box, manufactured by Ngk Metals Corporation Dba N G K Berylco, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-060-8369?

NSN 5120-00-060-8369 has 7 cross-referenced part numbers: W990FN (Cabot Corp Aluminum Master Alloy Business Unit), W-990S (Ngk Metals Corporation Dba N G K Berylco), W-3120 (Ampco Partners, Ltd. Dba Ampco Safety Tools), W-990S-2643 (Ngk Metals Corporation Dba N G K Berylco), W-3120 (Ampco Metal Inc. Dba Ampco Metal Inc) and 2 more.

What NSN replaces 5120-00-060-8369?

There is 1 known substitute for 5120-00-060-8369: 5120-00-277-5781. Verify interchangeability with system specifications before substitution.

What are the specifications of W-990S?

Key specifications for W-990S: Wrenching Surface Size: 0.438 INCHES NOMINAL FIRST END IN; Features Provided: NONMAGNETIC AND NONSPARKING; Wrenching Surface Size: 0.500 INCHES NOMINAL SECOND END IN; Material: COPPER ALLOY OVERALL. 7 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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