PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ANS1909ASocket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-144-5321 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-144-5321 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-144-5321. Primary manufacturer part number: ANS1909A.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 3.975 INCHES MAXIMUM IN
  • Drive End Outside Diameter: 3.975 INCHES MAXIMUM IN
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Size: 3.250 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Functional Description: USED WITH TORQUE WRENCH TO TIGHTEN/LOOSEN TRUCK WHEEL BEARING LOCKNUTS
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-144-5321, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-144-5321
Primary Part NumberANS1909A
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Wrenching End Outside Diameter3.975 INCHES MAXIMUM IN
Drive End Outside Diameter3.975 INCHES MAXIMUM IN
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Size3.250 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Functional DescriptionUSED WITH TORQUE WRENCH TO TIGHTEN/LOOSEN TRUCK WHEEL BEARING LOCKNUTS
Surface TreatmentOXIDE OVERALL
Wrenching Surface Shape8 POINT SINGLE END INTERNAL
Drive Surface Size0.750 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-009-8602ANS1912A INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-104-40765120-00-104-4076 INTERCHANGEABLE
Socket,socket Wrench
General Services Administration Federal Supply Service
5940-00-192-99621390 INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
6810-00-227-0411 INTERCHANGEABLE
Magnesium Chloride,hexahydrate
5133-00-243-2307 INTERCHANGEABLE
Countersink
5950-00-243-3856 INTERCHANGEABLE
Transformer,radio Frequency
4310-00-255-98431909 INTERCHANGEABLE
Cylinder Sleeve
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5977-00-284-9910 INTERCHANGEABLE
Brush,electrical Contact
5940-00-665-56135-001200-16-30 INTERCHANGEABLE
Terminal Board
Thales Components Corp Div Thales Components Corporation
4730-00-877-1068 INTERCHANGEABLE
Fitting,lubrication
Cross-Reference Index
Part NumberManufacturer
1909 Bosch Automotive Service Solutions Inc. (USA)
A-A-2635 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
ANS1909A PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS1909 PRIMARY Stanley Industrial & Automotive Llc (USA)
Related Parts
5120-00-009-8602INTERCHANGEABLE
SOCKET,SOCKET WRENCH
ANS1912A
5120-00-104-4076INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-104-4076
5940-00-192-9962INTERCHANGEABLE
TERMINAL BOARD
1390
6810-00-227-0411INTERCHANGEABLE
MAGNESIUM CHLORIDE,HEXAHYDRATE
5133-00-243-2307INTERCHANGEABLE
COUNTERSINK
5950-00-243-3856INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
4310-00-255-9843INTERCHANGEABLE
CYLINDER SLEEVE
1909
5977-00-284-9910INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5940-00-665-5613INTERCHANGEABLE
TERMINAL BOARD
5-001200-16-30
4730-00-877-1068INTERCHANGEABLE
FITTING,LUBRICATION
5355-00-878-0088INTERCHANGEABLE
KNOB
6240-00-945-7623INTERCHANGEABLE
LAMP,INCANDESCENT
1909

Frequently Asked Questions

What is NSN 5120-01-144-5321?

NSN 5120-01-144-5321 is a Socket,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-144-5321?

NSN 5120-01-144-5321 has 4 cross-referenced part numbers: 1909 (Bosch Automotive Service Solutions Inc.), A-A-2635 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), ANS1909A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS1909 (Stanley Industrial & Automotive Llc).

What NSN replaces 5120-01-144-5321?

There are 12 known substitutes for 5120-01-144-5321: 5120-00-009-8602, 5120-00-104-4076, 5940-00-192-9962 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ANS1909A?

Key specifications for ANS1909A: Wrenching End Outside Diameter: 3.975 INCHES MAXIMUM IN; Drive End Outside Diameter: 3.975 INCHES MAXIMUM IN; Style Designator: INTERNAL-INTERNAL; Wrenching Surface Size: 3.250 INCHES NOMINAL SINGLE END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-144-5321 still in active supply?

NSN 5120-01-144-5321 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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