PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-156Socket,socket Wrench

Herbrand Tools Corp · NSN 5120-00-199-7767 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-199-7767 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-199-7767. Primary manufacturer part number: 4-156.
Features
  • Socket,socket Wrench — FSC 5120
  • Style Designator: INTERNAL-INTERNAL
  • Drive Surface Size: 0.750 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Drive End Shape: SQUARE SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-199-7767, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Herbrand Tools Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 13 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
NSN5120-00-199-7767
Primary Part Number4-156
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerHerbrand Tools Corp
StatusCANCELLED
Style DesignatorINTERNAL-INTERNAL
Drive Surface Size0.750 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size1.750 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2815-00-146-2311 INTERCHANGEABLE
Plug
4510-00-242-4357S82 INTERCHANGEABLE
Stopper,waste Drain
Kirkhill Inc
6685-00-260-75596156 INTERCHANGEABLE
Case,thermometer
Brooklyn Thermometer Co Inc
5310-00-274-98496156 INTERCHANGEABLE
Washer,flat
Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems
2990-00-297-2399631GC4101P7X AND 57GC259 INTERCHANGEABLE
Turbocharger,diesel
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
5930-00-379-42765169945 INTERCHANGEABLE
Switch,rotary
Rolls-Royce Solutions America Inc
6930-00-397-26736156 INTERCHANGEABLE
Shoe,brake Altitude
Instruments and Flight Research, Inc.
2835-00-705-453896156-1 INTERCHANGEABLE
Diaphragm Assembly
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
4520-00-917-7461 INTERCHANGEABLE
Heating Element,electrical,nonim
5120-01-064-1924 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
4-156 Herbrand Tools Corp (CAN)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.1 The American Society of Mechanical Engineers (USA)
A-A-1394 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
9003-12-56 Air Dry Co of America, Llc (USA)
GGG-W-641 TY2CL2STA General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
CH1256 California Hardware Co (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
B107.1 CL1STA General Services Administration Federal Supply Service (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
802594-1 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
9003-12-56 Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect (USA)
6156 Wright Tool Company, Llc (USA)
AS954 Sae International Dba Sae International (USA)
0421 4012 Blackwood J. Blackwood & Son Pty Ltd (AUS)
Related Parts
2815-00-146-2311INTERCHANGEABLE
PLUG
4510-00-242-4357INTERCHANGEABLE
STOPPER,WASTE DRAIN
S82
6685-00-260-7559INTERCHANGEABLE
CASE,THERMOMETER
6156
5310-00-274-9849INTERCHANGEABLE
WASHER,FLAT
6156
2990-00-297-2399INTERCHANGEABLE
TURBOCHARGER,DIESEL
631GC4101P7X AND 57GC259
5930-00-379-4276INTERCHANGEABLE
SWITCH,ROTARY
5169945
6930-00-397-2673INTERCHANGEABLE
SHOE,BRAKE ALTITUDE
6156
2835-00-705-4538INTERCHANGEABLE
DIAPHRAGM ASSEMBLY
96156-1
4520-00-917-7461INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5120-01-064-1924INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5640-01-304-4031INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
5120-01-335-9084INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-199-7767?

NSN 5120-00-199-7767 is a Socket,socket Wrench, manufactured by Herbrand Tools Corp, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-199-7767?

NSN 5120-00-199-7767 has 16 cross-referenced part numbers: 4-156 (Herbrand Tools Corp), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC), B107.1 (The American Society of Mechanical Engineers), A-A-1394 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 9003-12-56 (Air Dry Co of America, Llc) and 11 more.

What NSN replaces 5120-00-199-7767?

There are 12 known substitutes for 5120-00-199-7767: 2815-00-146-2311, 4510-00-242-4357, 6685-00-260-7559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-156?

Key specifications for 4-156: Style Designator: INTERNAL-INTERNAL; Drive Surface Size: 0.750 INCHES NOMINAL SINGLE END IN; Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-199-7767 still in active supply?

NSN 5120-00-199-7767 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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