PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84540Wrench,spanner

Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems · NSN 5120-01-311-6395 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-311-6395 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-311-6395. Primary manufacturer part number: 84540.
Features
  • Wrench,spanner — FSC 5120
  • Outside Diameter: 3.250 INCHES NOMINAL IN
  • Opening Diameter: 2.500 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Surface Treatment: ANODIZE OVERALL
  • Material Document and Classification: QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Lug Width: 0.290 INCHES NOMINAL IN
  • Style Designator: LUG
Applications
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Wrench,spanner, cataloged under National Stock Number 5120-01-311-6395, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5120-01-311-6395
Primary Part Number84540
Item NameWrench,spanner
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
StatusACTIVE
Outside Diameter3.250 INCHES NOMINAL IN
Opening Diameter2.500 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061 OVERALL
Surface TreatmentANODIZE OVERALL
Material Document and ClassificationQQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lug Width0.290 INCHES NOMINAL IN
Style DesignatorLUG
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3030-01-272-28301665024 INTERCHANGEABLE
Belt,v
Simplicity Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
84540 PRIMARY Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA)
Related Parts
3030-01-272-2830INTERCHANGEABLE
BELT,V
1665024

Frequently Asked Questions

What is NSN 5120-01-311-6395?

NSN 5120-01-311-6395 is a Wrench,spanner, manufactured by Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-311-6395?

NSN 5120-01-311-6395 has 1 cross-referenced part number: 84540 (Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems).

What NSN replaces 5120-01-311-6395?

There is 1 known substitute for 5120-01-311-6395: 3030-01-272-2830. Verify interchangeability with system specifications before substitution.

What are the specifications of 84540?

Key specifications for 84540: Outside Diameter: 3.250 INCHES NOMINAL IN; Opening Diameter: 2.500 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 6061 OVERALL; Surface Treatment: ANODIZE OVERALL. 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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