PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.1Socket,socket Wrench

The American Society of Mechanical Engineers · NSN 5120-00-237-0977 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-237-0977 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-237-0977. Primary manufacturer part number: B107.1.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Special Markings: 1/2 IN. IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-237-0977, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 20 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
NSN5120-00-237-0977
Primary Part NumberB107.1
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Special Markings1/2 IN. IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size0.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-3705 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5330-00-147-3430WT86264W INTERCHANGEABLE
Seal
Eaton Aerospace, Llc Dba Jackson South
5330-00-154-904204240AB INTERCHANGEABLE
Seal,plain Encased
Cnh Industrial America Llc Dba Cnh America
5120-00-227-6702 INTERCHANGEABLE
Socket,socket Wrench
5120-00-227-6703 INTERCHANGEABLE
Socket,socket Wrench
5120-00-227-6704 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
Cross-Reference Index
Part NumberManufacturer
B107.1 The American Society of Mechanical Engineers (USA)
AS954 Society of Automotive Engineers Inc (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
86-264 Stanley Tools Div of Stanley Works (USA)
35W227 Lenard Packaging Co Inc the (USA)
1C2674 General Electric Company (USA)
J5216 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
9177430 Us Army Aviation and Missile Command (USA)
B-1216 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
0737 0403 Blackwood J. Blackwood & Son Pty Ltd (AUS)
J5216 The Stanley Works Dba Stanley Proto (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
50153 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
333016S King Tony Tools Co., Ltd
A-A-1404 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
10086316 Nimikkeistokeskus Ncb Finland (FIN)
AS954 Sae International Dba Sae International (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
B107.1 CL1STA General Services Administration Federal Supply Service (USA)
024-0673-060 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
Related Parts
3110-00-100-3705INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5330-00-147-3430INTERCHANGEABLE
SEAL
WT86264W
5330-00-154-9042INTERCHANGEABLE
SEAL,PLAIN ENCASED
04240AB
5120-00-227-6702INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-227-6703INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-227-6704INTERCHANGEABLE
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
5120-00-237-4973INTERCHANGEABLE
SOCKET,SOCKET WRENCH
3930-00-238-0021INTERCHANGEABLE
GLAND,PACKING
6276-4

Frequently Asked Questions

What is NSN 5120-00-237-0977?

NSN 5120-00-237-0977 is a Socket,socket Wrench, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-237-0977?

NSN 5120-00-237-0977 has 23 cross-referenced part numbers: B107.1 (The American Society of Mechanical Engineers), AS954 (Society of Automotive Engineers Inc), B107.1 TY1CL1 (General Services Administration Federal Supply Service), 86-264 (Stanley Tools Div of Stanley Works), 35W227 (Lenard Packaging Co Inc the) and 18 more.

What NSN replaces 5120-00-237-0977?

There are 12 known substitutes for 5120-00-237-0977: 3110-00-100-3705, 5330-00-147-3430, 5330-00-154-9042 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.1?

Key specifications for B107.1: Material: STEEL OVERALL; Features Provided: MANUAL TOOL; Drive End Shape: SQUARE SINGLE END INTERNAL; Special Markings: 1/2 IN. IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-237-0977 still in active supply?

NSN 5120-00-237-0977 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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