PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STMD7Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-335-0959 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-0959 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-0959. Primary manufacturer part number: STMD7.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Size: 0.219 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-335-0959, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-0959
Primary Part NumberSTMD7
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Wrenching Surface Size0.219 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Style DesignatorINTERNAL-INTERNAL
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-00-948-3214GW-1407 INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
AS954 Sae International Dba Sae International (USA)
STMD7 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
5120PL1077203 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5120-00-948-3214INTERCHANGEABLE
SOCKET,SOCKET WRENCH
GW-1407

Frequently Asked Questions

What is NSN 5120-01-335-0959?

NSN 5120-01-335-0959 is a Socket,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 5120-01-335-0959?

NSN 5120-01-335-0959 has 4 cross-referenced part numbers: AS954 (Sae International Dba Sae International), STMD7 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS954 TY1CL1STB (General Services Administration Federal Supply Service), 5120PL1077203 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 5120-01-335-0959?

There is 1 known substitute for 5120-01-335-0959: 5120-00-948-3214. Verify interchangeability with system specifications before substitution.

What are the specifications of STMD7?

Key specifications for STMD7: Wrenching Surface Size: 0.219 INCHES NOMINAL SINGLE END IN; Features Provided: MANUAL TOOL; Drive End Shape: SQUARE SINGLE END INTERNAL; Surface Treatment: CHROMIUM OVERALL. 11 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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