PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FRS S441Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-428-4688 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-4688 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-4688. Primary manufacturer part number: FRS S441.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-428-4688, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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
NSN5120-01-428-4688
Primary Part NumberFRS S441
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
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size1.375 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-127-452802202475700 INTERCHANGEABLE
Valve Core
Johnson Controls Navy Systems, Llc
5965-00-242-6560SCB19612 INTERCHANGEABLE
Adapter,microphone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5915-00-373-0824 INTERCHANGEABLE
Filter,low Pass
6145-00-635-550714672 INTERCHANGEABLE
Cable,special Purpose,electrical
Champlain Cable Leeds Corporation
5905-00-989-60155344 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Sensor Systems, L.l.c. Dba Sensor Systems Llc
9540-01-072-0169 INTERCHANGEABLE
Angle,structural
3040-01-085-47745344 INTERCHANGEABLE
Brake,clutch
Tulsa Cable Equipment Co Div Tulsa Power Products Inc
5310-01-112-4065 INTERCHANGEABLE
Nut
5935-01-306-87685344 INTERCHANGEABLE
Connector,plug,electrical
Fluke Electronics Corp
6520-01-316-1958S441 INTERCHANGEABLE
Resin,acrylic,dental
Parkell, Inc. Dba Parkell Inc
Cross-Reference Index
Part NumberManufacturer
FRS S441 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 Sae International Dba Sae International (USA)
J5344 The Stanley Works Dba Stanley Proto (USA)
STP 5344 Kipper Tool Company Dba Kipper Management Inc (USA)
5344 The Stanley Works Dba Stanley Proto (USA)
AS954 Society of Automotive Engineers Inc (USA)
S441 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
1FX17 W.w. Grainger, Inc. Div Government Sales Division (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
Related Parts
4820-00-127-4528INTERCHANGEABLE
VALVE CORE
02202475700
5965-00-242-6560INTERCHANGEABLE
ADAPTER,MICROPHONE
SCB19612
5915-00-373-0824INTERCHANGEABLE
FILTER,LOW PASS
6145-00-635-5507INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
14672
5905-00-989-6015INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
5344
9540-01-072-0169INTERCHANGEABLE
ANGLE,STRUCTURAL
3040-01-085-4774INTERCHANGEABLE
BRAKE,CLUTCH
5344
5310-01-112-4065INTERCHANGEABLE
NUT
5935-01-306-8768INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5344
6520-01-316-1958INTERCHANGEABLE
RESIN,ACRYLIC,DENTAL
S441
6105-01-363-4715INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
E9154
5975-01-443-1149INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5344

Frequently Asked Questions

What is NSN 5120-01-428-4688?

NSN 5120-01-428-4688 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 5120-01-428-4688?

NSN 5120-01-428-4688 has 9 cross-referenced part numbers: FRS S441 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS954 (Sae International Dba Sae International), J5344 (The Stanley Works Dba Stanley Proto), STP 5344 (Kipper Tool Company Dba Kipper Management Inc), 5344 (The Stanley Works Dba Stanley Proto) and 4 more.

What NSN replaces 5120-01-428-4688?

There are 12 known substitutes for 5120-01-428-4688: 4820-00-127-4528, 5965-00-242-6560, 5915-00-373-0824 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FRS S441?

Key specifications for FRS S441: Material: STEEL OVERALL; Drive End Shape: SQUARE SINGLE END INTERNAL; Special Features: DEEP LENGTH; Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-428-4688 still in active supply?

NSN 5120-01-428-4688 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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