PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1109-20Socket,socket Wrench

Naval Air Warfare Center Aircraft Division Joint Base Jbmdl · NSN 5120-00-237-0979 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-237-0979 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-237-0979. Primary manufacturer part number: 1109-20.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Opening Depth: 0.375 INCHES MINIMUM IN
  • Wrenching Surface Size: 0.688 INCHES NOMINAL SINGLE END IN
  • Style Designator: UNIVERSAL JOINT
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • 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 5120-00-237-0979, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Naval Air Warfare Center Aircraft Division Joint Base Jbmdl. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 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
NSN5120-00-237-0979
Primary Part Number1109-20
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerNaval Air Warfare Center Aircraft Division Joint Base Jbmdl
StatusACTIVE
Wrenching End Opening Depth0.375 INCHES MINIMUM IN
Wrenching Surface Size0.688 INCHES NOMINAL SINGLE END IN
Style DesignatorUNIVERSAL JOINT
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Special Markings11/16 IN. IN
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Drive End ShapeSQUARE SINGLE END INTERNAL
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End Outside Diameter0.885 INCHES MAXIMUM IN
Wrenching End Outside Diameter1.070 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2825-00-038-0789 INTERCHANGEABLE
Deflector,dirt and Liquid
5905-00-061-0024F20J1K5 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5120-00-152-2285 INTERCHANGEABLE
Socket Set,socket Wrench
5915-00-154-3984SMB525442 INTERCHANGEABLE
Filter,low Pass
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5120-00-181-6785 INTERCHANGEABLE
Socket,socket Wrench
6515-00-183-94754422 INTERCHANGEABLE
Catheter and Needle Unit,intrave
Critikon Inc Sub of Johnson and Johnson
3040-00-199-2376 INTERCHANGEABLE
Gearshaft Assembly,planetary
5120-00-199-7686 INTERCHANGEABLE
Socket,socket Wrench
6220-00-226-1994891892 INTERCHANGEABLE
Lamp Unit,vehicular
Dana Off Highway Products, Llc
5120-00-235-5847 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
1109-20 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
4422 Duro Metal Products Co (USA)
B107.1 CL3 General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
40672 S K Hand Tool Corp (USA)
BU-1222 Williams J H Industrial Products Inc (USA)
B107.1 The American Society of Mechanical Engineers (USA)
F220 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
SSU386H Westward Tools (CAN)
AS954 TY1CL2 General Services Administration Federal Supply Service (USA)
FU22A Sna Germany Gmbh (DEU)
A-A-1401 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
BU-1222 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
AS954 Sae International Dba Sae International (USA)
Related Parts
2825-00-038-0789INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
5905-00-061-0024INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
F20J1K5
5120-00-152-2285INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
5915-00-154-3984INTERCHANGEABLE
FILTER,LOW PASS
SMB525442
5120-00-181-6785INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6515-00-183-9475INTERCHANGEABLE
CATHETER AND NEEDLE UNIT,INTRAVE
4422
3040-00-199-2376INTERCHANGEABLE
GEARSHAFT ASSEMBLY,PLANETARY
5120-00-199-7686INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6220-00-226-1994INTERCHANGEABLE
LAMP UNIT,VEHICULAR
891892
5120-00-235-5847INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-235-5872INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-236-7611INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-237-0979?

NSN 5120-00-237-0979 is a Socket,socket Wrench, manufactured by Naval Air Warfare Center Aircraft Division Joint Base Jbmdl, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-237-0979?

NSN 5120-00-237-0979 has 15 cross-referenced part numbers: 1109-20 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl), 4422 (Duro Metal Products Co), B107.1 CL3 (General Services Administration Federal Supply Service), AS954 (Society of Automotive Engineers Inc), GGG-W-641 (Federal Specifications Promulgated by General Services Administration Washington DC) and 10 more.

What NSN replaces 5120-00-237-0979?

There are 12 known substitutes for 5120-00-237-0979: 2825-00-038-0789, 5905-00-061-0024, 5120-00-152-2285 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1109-20?

Key specifications for 1109-20: Wrenching End Opening Depth: 0.375 INCHES MINIMUM IN; Wrenching Surface Size: 0.688 INCHES NOMINAL SINGLE END IN; Style Designator: UNIVERSAL JOINT; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 15 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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