PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

341663Adapter,torque Wrench

Lockheed Martin Corp · NSN 5120-00-343-0068 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-343-0068 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-343-0068. Primary manufacturer part number: 341663.
Features
  • Adapter,torque Wrench — FSC 5120
  • Outside Diameter: 1.250 INCHES NOMINAL IN
  • Head Thickness: 0.688 INCHES NOMINAL IN
  • Drive End Shape: SQUARE SINGLE END EXTERNAL
  • Drive Surface Size: 0.500 INCHES MINIMUM SINGLE END IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • 4 verified cross-references
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Adapter,torque Wrench, cataloged under National Stock Number 5120-00-343-0068, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5120-00-343-0068
Primary Part Number341663
Item NameAdapter,torque Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Outside Diameter1.250 INCHES NOMINAL IN
Head Thickness0.688 INCHES NOMINAL IN
Drive End ShapeSQUARE SINGLE END EXTERNAL
Drive Surface Size0.500 INCHES MINIMUM SINGLE END IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4820-00-296-9677 INTERCHANGEABLE
Valve,vent
5310-00-639-0950193-6 INTERCHANGEABLE
Washer,lock
Cnh Industrial America Llc Dba Cnh America
1680-00-703-3461 INTERCHANGEABLE
Control Assembly,quadrant
5120-00-776-7046 INTERCHANGEABLE
Guide,high Pressure Block Assemb
5930-01-020-2506 INTERCHANGEABLE
Switch,pressure
4820-01-101-2891137-259-080-420-000 INTERCHANGEABLE
Cover,valve
Emerson Automation Solutions Final Control Us Lp
4820-01-118-1986325104.700 INTERCHANGEABLE
Valve,butterfly
W & O Supply Inc
4820-01-200-3186902-776-020-400-005 INTERCHANGEABLE
Plate,throttling
Emerson Automation Solutions Final Control Us Lp
4820-01-200-8925440-819-120-420-044 INTERCHANGEABLE
Gear Operator,valve
Emerson Automation Solutions Final Control Us Lp
3040-01-293-1375109-218-080-420-003 INTERCHANGEABLE
Shaft,shouldered
Emerson Automation Solutions Final Control Us Lp
Cross-Reference Index
Part NumberManufacturer
5120PL0936825 Jednolity Indeks Materialowy - Uniform Material Index (POL)
341663 PRIMARY Lockheed Martin Corp (USA)
111-000 Lockheed Martin Corp (USA)
DWG5120-00-343-0068 PRIMARY General Services Administration Federal Supply Service (USA)
Related Parts
4820-00-296-9677INTERCHANGEABLE
VALVE,VENT
5310-00-639-0950INTERCHANGEABLE
WASHER,LOCK
193-6
1680-00-703-3461INTERCHANGEABLE
CONTROL ASSEMBLY,QUADRANT
5120-00-776-7046INTERCHANGEABLE
GUIDE,HIGH PRESSURE BLOCK ASSEMB
5930-01-020-2506INTERCHANGEABLE
SWITCH,PRESSURE
4820-01-101-2891INTERCHANGEABLE
COVER,VALVE
137-259-080-420-000
4820-01-118-1986INTERCHANGEABLE
VALVE,BUTTERFLY
325104.700
4820-01-200-3186INTERCHANGEABLE
PLATE,THROTTLING
902-776-020-400-005
4820-01-200-8925INTERCHANGEABLE
GEAR OPERATOR,VALVE
440-819-120-420-044
3040-01-293-1375INTERCHANGEABLE
SHAFT,SHOULDERED
109-218-080-420-003
5920-01-717-8061INTERCHANGEABLE
FUSE,ENCLOSED LINK
11-1000

Frequently Asked Questions

What is NSN 5120-00-343-0068?

NSN 5120-00-343-0068 is a Adapter,torque Wrench, manufactured by Lockheed Martin Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-343-0068?

NSN 5120-00-343-0068 has 4 cross-referenced part numbers: 5120PL0936825 (Jednolity Indeks Materialowy - Uniform Material Index), 341663 (Lockheed Martin Corp), 111-000 (Lockheed Martin Corp), DWG5120-00-343-0068 (General Services Administration Federal Supply Service).

What NSN replaces 5120-00-343-0068?

There are 11 known substitutes for 5120-00-343-0068: 4820-00-296-9677, 5310-00-639-0950, 1680-00-703-3461 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 341663?

Key specifications for 341663: Outside Diameter: 1.250 INCHES NOMINAL IN; Head Thickness: 0.688 INCHES NOMINAL IN; Drive End Shape: SQUARE SINGLE END EXTERNAL; Drive Surface Size: 0.500 INCHES MINIMUM SINGLE END IN. 6 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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