PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1218Socket,socket Wrench

Trw Inc Hand Tools Div Trw Industrial Products Group · NSN 5120-00-227-6704 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-227-6704 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-227-6704. Primary manufacturer part number: B1218.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-227-6704, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Trw Inc Hand Tools Div Trw Industrial Products Group. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 18 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
NSN5120-00-227-6704
Primary Part NumberB1218
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerTrw Inc Hand Tools Div Trw Industrial Products Group
StatusCANCELLED
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.562 INCHES NOMINAL SINGLE END IN
Special Markings9/16 IN. IN
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-227-6702 INTERCHANGEABLE
Socket,socket Wrench
5120-00-227-6703 INTERCHANGEABLE
Socket,socket Wrench
5120-00-227-6705 INTERCHANGEABLE
Socket,socket Wrench
5120-00-232-5706 INTERCHANGEABLE
Socket,socket Wrench
5120-00-232-5711F101 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-235-5807 INTERCHANGEABLE
Socket,socket Wrench
5120-00-237-0977 INTERCHANGEABLE
Socket,socket Wrench
5120-00-237-4973 INTERCHANGEABLE
Socket,socket Wrench
5120-00-242-3330 INTERCHANGEABLE
Socket,socket Wrench
5120-00-277-4251 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
B1218 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
41W2999-125 General Stores Supply Office (USA)
KTI22518 K-Tool Corporation of Michigan Dba Preferred Tool & Equipment (USA)
B107.1 CL1STA General Services Administration Federal Supply Service (USA)
A-A-1404 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
F181 Sna Germany Gmbh (DEU)
52-3118 Apex Tool Group, Llc Dba Nicholson (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
52-3118 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
B107.1 The American Society of Mechanical Engineers (USA)
AS954 Society of Automotive Engineers Inc (USA)
NHTNB1218 Napa Auto Parts and Service Inc (USA)
73376 Alfa Laval Inc (USA)
TR60-0215501 Amsafe Bridport Ltd (GBR)
AS954 Sae International Dba Sae International (USA)
G243080-7 American Telephone and Telegraph Co (USA)
G243080-7 At and T Corp (USA)
5120PL1328468 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5120-00-227-6702INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-227-6703INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-227-6705INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-232-5706INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-232-5711INTERCHANGEABLE
SOCKET,SOCKET WRENCH
F101
5120-00-235-5807INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-237-0977INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-237-4973INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-242-3330INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-277-4251INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-288-8155INTERCHANGEABLE
SOCKET,SOCKET WRENCH
3895-00-352-1265INTERCHANGEABLE
VALVE,CAM OIL
31G48

Frequently Asked Questions

What is NSN 5120-00-227-6704?

NSN 5120-00-227-6704 is a Socket,socket Wrench, manufactured by Trw Inc Hand Tools Div Trw Industrial Products Group, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-227-6704?

NSN 5120-00-227-6704 has 20 cross-referenced part numbers: B1218 (Trw Inc Hand Tools Div Trw Industrial Products Group), 41W2999-125 (General Stores Supply Office), KTI22518 (K-Tool Corporation of Michigan Dba Preferred Tool & Equipment), B107.1 CL1STA (General Services Administration Federal Supply Service), A-A-1404 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 15 more.

What NSN replaces 5120-00-227-6704?

There are 12 known substitutes for 5120-00-227-6704: 5120-00-227-6702, 5120-00-227-6703, 5120-00-227-6705 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1218?

Key specifications for B1218: Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Style Designator: INTERNAL-INTERNAL; Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-227-6704 still in active supply?

NSN 5120-00-227-6704 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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