PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM20Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-661-7169 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-661-7169 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-661-7169. Primary manufacturer part number: SM20.
Features
  • Socket,socket Wrench — FSC 5120
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-661-7169, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-661-7169
Primary Part NumberSM20
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
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
MaterialSTEEL OVERALL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size20.0 MILLIMETERS NOMINAL SINGLE END MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5935-00-137-7417C141-007-0226 INTERCHANGEABLE
Connector,receptacle,electrical
L3harris Interstate Electronics Corporation
5935-00-137-7418C141-007-0326 INTERCHANGEABLE
Connector,receptacle,electrical
L3harris Interstate Electronics Corporation
3455-00-231-352909610 INTERCHANGEABLE
Cutter,milling,shell End
Niagara Cutter Inc
5961-00-269-3056SM20 INTERCHANGEABLE
Semiconductor Device,diode
Micross Corpus Christi, S.a. De C.v. Div Semtech Corpus Christi Corporation
6105-00-939-9424FPE25L214-2 INTERCHANGEABLE
Motor,control
Kearfott Corp Div Kearfott Corporation
5340-01-315-5982 INTERCHANGEABLE
Clamp,synchro Mount
Cross-Reference Index
Part NumberManufacturer
SM20 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
11A7000790-11 Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army (USA)
Related Parts
5935-00-137-7417INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C141-007-0226
5935-00-137-7418INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C141-007-0326
3455-00-231-3529INTERCHANGEABLE
CUTTER,MILLING,SHELL END
09610
5961-00-269-3056INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
SM20
6105-00-939-9424INTERCHANGEABLE
MOTOR,CONTROL
FPE25L214-2
5340-01-315-5982INTERCHANGEABLE
CLAMP,SYNCHRO MOUNT

Frequently Asked Questions

What is NSN 5120-01-661-7169?

NSN 5120-01-661-7169 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 5120-01-661-7169?

NSN 5120-01-661-7169 has 2 cross-referenced part numbers: SM20 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 11A7000790-11 (Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army).

What NSN replaces 5120-01-661-7169?

There are 6 known substitutes for 5120-01-661-7169: 5935-00-137-7417, 5935-00-137-7418, 3455-00-231-3529 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM20?

Key specifications for SM20: Overall Length: 82.6 MILLIMETERS NOMINAL MM; End Item Identification: ARSS; Style Designator: INTERNAL-INTERNAL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL. 10 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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