PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-318Socket,socket Wrench

Armstrong Bros Tool Co · NSN 5120-01-397-3284 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-397-3284 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-397-3284. Primary manufacturer part number: 10-318.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Wrenching Surface Size: 0.562 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-397-3284, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-397-3284
Primary Part Number10-318
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerArmstrong Bros Tool Co
StatusACTIVE
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Wrenching Surface Size0.562 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-078-1773 INTERCHANGEABLE
Transformer,power
3120-00-204-2014103-18 INTERCHANGEABLE
Bushing,sleeve
Dukes Aerospace, Inc.
2825-00-218-609610318 INTERCHANGEABLE
Disk,hand Valve
Northrop Grumman Systems Corporation Div Marine Systems
3040-00-395-9441SM-B-157038 INTERCHANGEABLE
Connecting Link,rigid
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4320-00-398-8077 INTERCHANGEABLE
Ring,wearing
3020-00-425-341910318 INTERCHANGEABLE
Gear,spur
Garwood/feller Inc Garwood Winch Div
3120-00-426-761310318 INTERCHANGEABLE
Roller,linear-Rotary Motion
Maniabarco Inc.
5133-00-988-5705DBTBC9/32 INTERCHANGEABLE
Drill,twist
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
3120-01-031-83562505373 INTERCHANGEABLE
Bushing,sleeve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-01-198-206910318 INTERCHANGEABLE
Arm,switch Actuator
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
10-318 Armstrong Bros Tool Co (USA)
10-318 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
10-318 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5950-00-078-1773INTERCHANGEABLE
TRANSFORMER,POWER
3120-00-204-2014INTERCHANGEABLE
BUSHING,SLEEVE
103-18
2825-00-218-6096INTERCHANGEABLE
DISK,HAND VALVE
10318
3040-00-395-9441INTERCHANGEABLE
CONNECTING LINK,RIGID
SM-B-157038
4320-00-398-8077INTERCHANGEABLE
RING,WEARING
3020-00-425-3419INTERCHANGEABLE
GEAR,SPUR
10318
3120-00-426-7613INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
10318
5133-00-988-5705INTERCHANGEABLE
DRILL,TWIST
DBTBC9/32
3120-01-031-8356INTERCHANGEABLE
BUSHING,SLEEVE
2505373
5930-01-198-2069INTERCHANGEABLE
ARM,SWITCH ACTUATOR
10318
5999-01-200-9445INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
6850-01-333-0812INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
10-318

Frequently Asked Questions

What is NSN 5120-01-397-3284?

NSN 5120-01-397-3284 is a Socket,socket Wrench, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-397-3284?

NSN 5120-01-397-3284 has 3 cross-referenced part numbers: 10-318 (Armstrong Bros Tool Co), 10-318 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 10-318 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-397-3284?

There are 12 known substitutes for 5120-01-397-3284: 5950-00-078-1773, 3120-00-204-2014, 2825-00-218-6096 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-318?

Key specifications for 10-318: Overall Length: 2.000 INCHES NOMINAL IN; Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Features Provided: MANUAL TOOL; 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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