PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S381Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-335-8164 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-8164 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-8164. Primary manufacturer part number: S381.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 1.188 INCHES NOMINAL SINGLE END IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-335-8164, 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 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-8164
Primary Part NumberS381
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
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size1.188 INCHES NOMINAL SINGLE END IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedMANUAL TOOL
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4930-00-106-8676MP5136-20 INTERCHANGEABLE
Stand Assembly,fuel
Military Petroleum and Water Systems Inc
3030-00-117-92854638 INTERCHANGEABLE
Belts,v,matched Set
Harbormaster Marine, Inc
5905-00-156-70854638 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Sensor Systems, L.l.c. Dba Sensor Systems Llc
5930-00-258-4340127459DQH2 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5136-00-403-555126822 INTERCHANGEABLE
Die Head and Die,hand
Curtis-Toledo, Inc.
5330-00-442-02084638 INTERCHANGEABLE
Gasket
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
3120-00-469-12913435A12PC57 INTERCHANGEABLE
Bearing,sleeve
Bae Systems Land & Armaments L.p.
5930-01-110-7101S38-1 INTERCHANGEABLE
Switch,thermostatic
Cae Usa Inc.
6140-01-180-75884638 INTERCHANGEABLE
Roller,battery Box
Elliott Machine Works Inc
5120-01-215-93834638 INTERCHANGEABLE
Retrieving Tool,cable
Huntington Partners, Inc. Dba Continental Tool & Mfg.
Cross-Reference Index
Part NumberManufacturer
S381 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 Society of Automotive Engineers Inc (USA)
4638 Wright Tool Co (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
Related Parts
4930-00-106-8676INTERCHANGEABLE
STAND ASSEMBLY,FUEL
MP5136-20
3030-00-117-9285INTERCHANGEABLE
BELTS,V,MATCHED SET
4638
5905-00-156-7085INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4638
5930-00-258-4340INTERCHANGEABLE
SWITCH,ROTARY
127459DQH2
5136-00-403-5551INTERCHANGEABLE
DIE HEAD AND DIE,HAND
26822
5330-00-442-0208INTERCHANGEABLE
GASKET
4638
3120-00-469-1291INTERCHANGEABLE
BEARING,SLEEVE
3435A12PC57
5930-01-110-7101INTERCHANGEABLE
SWITCH,THERMOSTATIC
S38-1
6140-01-180-7588INTERCHANGEABLE
ROLLER,BATTERY BOX
4638
5120-01-215-9383INTERCHANGEABLE
RETRIEVING TOOL,CABLE
4638
5950-01-359-9531INTERCHANGEABLE
REACTOR
4638
4530-01-396-2479INTERCHANGEABLE
LENS,QUARTZ SCANNER
46-38

Frequently Asked Questions

What is NSN 5120-01-335-8164?

NSN 5120-01-335-8164 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 5120-01-335-8164?

NSN 5120-01-335-8164 has 5 cross-referenced part numbers: S381 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS954 (Society of Automotive Engineers Inc), 4638 (Wright Tool Co), AS954 TY1CL1STB (General Services Administration Federal Supply Service), AS954 (Sae International Dba Sae International).

What NSN replaces 5120-01-335-8164?

There are 12 known substitutes for 5120-01-335-8164: 4930-00-106-8676, 3030-00-117-9285, 5905-00-156-7085 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S381?

Key specifications for S381: Overall Length: 2.930 INCHES MINIMUM IN; Material: STEEL OVERALL; Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Size: 1.188 INCHES NOMINAL SINGLE END IN. 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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