PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.5/B18.3.2Screwdriver Attachment,socket Wr

The American Society of Mechanical Engineers · NSN 5120-01-079-8035 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-079-8035 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-079-8035. Primary manufacturer part number: B107.5/B18.3.2.
Features
  • Screwdriver Attachment,socket Wr — FSC 5120
  • Blade Length: 127.0 MILLIMETERS NOMINAL MM
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Style Designator: HEXAGON
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL AND REPLACEABLE BIT
  • Wrenching Surface Size: 4.0 MILLIMETERS NOMINAL SINGLE END MM
  • Specification/standard Data: 05047-ASME B107.5/B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Screwdriver Attachment,socket Wr, cataloged under National Stock Number 5120-01-079-8035, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-079-8035
Primary Part NumberB107.5/B18.3.2
Item NameScrewdriver Attachment,socket Wr
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Blade Length127.0 MILLIMETERS NOMINAL MM
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
Style DesignatorHEXAGON
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL AND REPLACEABLE BIT
Wrenching Surface Size4.0 MILLIMETERS NOMINAL SINGLE END MM
Specification/standard Data05047-ASME B107.5/B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Outside Diameter17.0 MILLIMETERS NOMINAL MM
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM DRIVE SURFACE
Surface TreatmentOXIDE BIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5120-01-053-4158 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
5120-01-079-8033SAM14E INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-081-8058 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
5120-01-104-5347 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
Cross-Reference Index
Part NumberManufacturer
B107.5/B18.3.2 The American Society of Mechanical Engineers (USA)
H24771 Mbda Uk Ltd (GBR)
Related Parts
5120-01-053-4158INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
5120-01-079-8033INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
SAM14E
5120-01-081-8058INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
5120-01-104-5347INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR

Frequently Asked Questions

What is NSN 5120-01-079-8035?

NSN 5120-01-079-8035 is a Screwdriver Attachment,socket Wr, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-079-8035?

NSN 5120-01-079-8035 has 2 cross-referenced part numbers: B107.5/B18.3.2 (The American Society of Mechanical Engineers), H24771 (Mbda Uk Ltd).

What NSN replaces 5120-01-079-8035?

There are 4 known substitutes for 5120-01-079-8035: 5120-01-053-4158, 5120-01-079-8033, 5120-01-081-8058 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.5/B18.3.2?

Key specifications for B107.5/B18.3.2: Blade Length: 127.0 MILLIMETERS NOMINAL MM; Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL; Style Designator: HEXAGON; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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