PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STP 5274ASocket,socket Wrench

Kipper Tool Company Dba Kipper Management Inc · NSN 5120-01-399-9741 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9741 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9741. Primary manufacturer part number: STP 5274A.
Features
  • Socket,socket Wrench — FSC 5120
  • Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Size: 0.438 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9741, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Kipper Tool Company Dba Kipper Management Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9741
Primary Part NumberSTP 5274A
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerKipper Tool Company Dba Kipper Management Inc
StatusCANCELLED
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.438 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Style DesignatorUNIVERSAL JOINT
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5305-00-034-1242 INTERCHANGEABLE
Screw,cap,socket Head
4730-00-189-3018 INTERCHANGEABLE
Elbow,pipe to Tube
4720-00-262-1108 INTERCHANGEABLE
Hose Assembly,nonmetallic
5315-00-358-97761246C211 INTERCHANGEABLE
Pin,straight,headed
Meritor Industrial Products, Llc
5930-00-583-89095274 INTERCHANGEABLE
Switch,foot
Illinois Tool Works, Inc. Div Magnaflux
5310-00-784-1684E9BS1024C INTERCHANGEABLE
Nut,self-Locking,hexagon
Textron Inc Townsend Div
5935-00-823-08022314335 INTERCHANGEABLE
Connector,plug,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-01-005-3579 INTERCHANGEABLE
Connector,plug,electrical
6145-01-150-60185274C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
1660-01-545-53835274 INTERCHANGEABLE
Yoke Filler Assembl
Fluid Power, Inc.
Cross-Reference Index
Part NumberManufacturer
STP 5274A Kipper Tool Company Dba Kipper Management Inc (USA)
AS954 Sae International Dba Sae International (USA)
1AL31 W.w. Grainger, Inc. Div Government Sales Division (USA)
5274 The Stanley Works Dba Stanley Proto (USA)
J5274A The Stanley Works Dba Stanley Proto (USA)
AS954 TY1CL2 General Services Administration Federal Supply Service (USA)
J5274 The Stanley Works Dba Stanley Proto (USA)
AS954 Society of Automotive Engineers Inc (USA)
Related Parts
5305-00-034-1242INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
4730-00-189-3018INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4720-00-262-1108INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5315-00-358-9776INTERCHANGEABLE
PIN,STRAIGHT,HEADED
1246C211
5930-00-583-8909INTERCHANGEABLE
SWITCH,FOOT
5274
5310-00-784-1684INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
E9BS1024C
5935-00-823-0802INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2314335
5935-01-005-3579INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
6145-01-150-6018INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5274C
1660-01-545-5383INTERCHANGEABLE
YOKE FILLER ASSEMBL
5274

Frequently Asked Questions

What is NSN 5120-01-399-9741?

NSN 5120-01-399-9741 is a Socket,socket Wrench, manufactured by Kipper Tool Company Dba Kipper Management Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9741?

NSN 5120-01-399-9741 has 8 cross-referenced part numbers: STP 5274A (Kipper Tool Company Dba Kipper Management Inc), AS954 (Sae International Dba Sae International), 1AL31 (W.w. Grainger, Inc. Div Government Sales Division), 5274 (The Stanley Works Dba Stanley Proto), J5274A (The Stanley Works Dba Stanley Proto) and 3 more.

What NSN replaces 5120-01-399-9741?

There are 10 known substitutes for 5120-01-399-9741: 5305-00-034-1242, 4730-00-189-3018, 4720-00-262-1108 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of STP 5274A?

Key specifications for STP 5274A: Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Features Provided: MANUAL TOOL; Wrenching Surface Size: 0.438 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9741 still in active supply?

NSN 5120-01-399-9741 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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