PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-115Extension,socket Wrench

Williams J H Industrial Products Inc · NSN 5120-01-398-7677 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-7677 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-7677. Primary manufacturer part number: B-115.
Features
  • Extension,socket Wrench — FSC 5120
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Style Designator: RIGID
  • Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-398-7677, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Williams J H Industrial Products Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 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
NSN5120-01-398-7677
Primary Part NumberB-115
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWilliams J H Industrial Products Inc
StatusCANCELLED
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE SECOND END EXTERNAL
Style DesignatorRIGID
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE FIRST END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1730-00-006-3773 INTERCHANGEABLE
Leg,stand
5310-00-012-5366 INTERCHANGEABLE
Nut,plain,slotted,hexagon
6210-00-079-4660 INTERCHANGEABLE
Fixture,lighting
5950-00-133-429121092 INTERCHANGEABLE
Reactor
Astec America Inc.
5940-00-204-7837B115 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5340-00-205-560711912 INTERCHANGEABLE
Caster,swivel
Aerol Llc
5930-00-228-6955 INTERCHANGEABLE
Switch,thermostatic
5910-00-233-4874 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
6130-00-262-0419 INTERCHANGEABLE
Rectifier,electropl
4940-00-274-3026 INTERCHANGEABLE
Degreaser
Cross-Reference Index
Part NumberManufacturer
72-1210 Apex Tool Group, Llc Dba Nicholson (USA)
44262 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
KTI22010 K-Tool Corporation of Michigan Dba Preferred Tool & Equipment (USA)
B-115 PRIMARY Williams J H Industrial Products Inc (USA)
9-44262 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
72-1210 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
11912 Apex Tool Group, Llc Dba Nicholson (USA)
11912 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
B-115 WILLIAMS Kipper Tool Company Dba Kipper Management Inc (USA)
11912 Easco Hand Tools Inc (USA)
00944262000 PRIMARY Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
AS4283 Sae International Dba Sae International (USA)
Related Parts
1730-00-006-3773INTERCHANGEABLE
LEG,STAND
5310-00-012-5366INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
6210-00-079-4660INTERCHANGEABLE
FIXTURE,LIGHTING
5950-00-133-4291INTERCHANGEABLE
REACTOR
21092
5940-00-204-7837INTERCHANGEABLE
TERMINAL,LUG
B115
5340-00-205-5607INTERCHANGEABLE
CASTER,SWIVEL
11912
5930-00-228-6955INTERCHANGEABLE
SWITCH,THERMOSTATIC
5910-00-233-4874INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
6130-00-262-0419INTERCHANGEABLE
RECTIFIER,ELECTROPL
4940-00-274-3026INTERCHANGEABLE
DEGREASER
4720-00-322-5328INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
11912
5925-00-374-1690INTERCHANGEABLE
THERMAL RELEASE,CIRCUIT BREAKER
B11.5

Frequently Asked Questions

What is NSN 5120-01-398-7677?

NSN 5120-01-398-7677 is a Extension,socket Wrench, manufactured by Williams J H Industrial Products Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-398-7677?

NSN 5120-01-398-7677 has 13 cross-referenced part numbers: 72-1210 (Apex Tool Group, Llc Dba Nicholson), 44262 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), KTI22010 (K-Tool Corporation of Michigan Dba Preferred Tool & Equipment), B-115 (Williams J H Industrial Products Inc), 9-44262 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial) and 8 more.

What NSN replaces 5120-01-398-7677?

There are 12 known substitutes for 5120-01-398-7677: 1730-00-006-3773, 5310-00-012-5366, 6210-00-079-4660 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-115?

Key specifications for B-115: Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Drive End Shape: SQUARE SECOND END EXTERNAL; Style Designator: RIGID; Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-398-7677 still in active supply?

NSN 5120-01-398-7677 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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