PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L672BRatchet Attachment,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-355-1900 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-355-1900 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-355-1900. Primary manufacturer part number: L672B.
Features
  • Ratchet Attachment,socket Wrench — FSC 5120
  • Specification/standard Data: 05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: EXTERNAL-INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE
  • Drive End Shape: SQUARE FIRST END EXTERNAL
  • Drive Surface Size: 0.750 INCHES NOMINAL BOTH ENDS IN
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Ratchet Attachment,socket Wrench, cataloged under National Stock Number 5120-01-355-1900, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-355-1900
Primary Part NumberL672B
Item NameRatchet Attachment,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Specification/standard Data05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorEXTERNAL-INTERNAL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS AND B STYLE
Drive End ShapeSQUARE FIRST END EXTERNAL
Drive Surface Size0.750 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SECOND END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5120-00-227-8129 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7322 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7323 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-277-1207 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-334-9859 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-334-9872 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-335-1081S77A INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-335-1082 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-335-1086 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-399-9668J5447 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
L672 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.110 The American Society of Mechanical Engineers (USA)
B107.10 TY2CL3STB General Services Administration Federal Supply Service (USA)
L672B PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.10 The American Society of Mechanical Engineers (USA)
5120PL1208832 Jednolity Indeks Materialowy - Uniform Material Index (POL)
B107.110 CAT TY2CL3STB General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-227-8129INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7322INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7323INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-277-1207INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-334-9859INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-334-9872INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-335-1081INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
S77A
5120-01-335-1082INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-335-1086INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-399-9668INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
J5447

Frequently Asked Questions

What is NSN 5120-01-355-1900?

NSN 5120-01-355-1900 is a Ratchet Attachment,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-355-1900?

NSN 5120-01-355-1900 has 7 cross-referenced part numbers: L672 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.110 (The American Society of Mechanical Engineers), B107.10 TY2CL3STB (General Services Administration Federal Supply Service), L672B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.10 (The American Society of Mechanical Engineers) and 2 more.

What NSN replaces 5120-01-355-1900?

There are 10 known substitutes for 5120-01-355-1900: 5120-00-227-8129, 5120-00-243-7322, 5120-00-243-7323 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L672B?

Key specifications for L672B: Specification/standard Data: 05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Style Designator: EXTERNAL-INTERNAL; Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE. 9 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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