PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-2473Key,socket Head Screw

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5120-00-222-1489 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-222-1489 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-222-1489. Primary manufacturer part number: A-A-2473.
Features
  • Key,socket Head Screw — FSC 5120
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Material: STEEL OVERALL
  • Features Provided: SHORT SERIES
  • Wrenching Surface Size: 0.750 INCHES NOMINAL BOTH ENDS IN
  • Style Designator: L-HANDLE
  • Long Arm Length: 7.156 INCHES MINIMUM AND 7.344 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-00-222-1489, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-222-1489
Primary Part NumberA-A-2473
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
MaterialSTEEL OVERALL
Features ProvidedSHORT SERIES
Wrenching Surface Size0.750 INCHES NOMINAL BOTH ENDS IN
Style DesignatorL-HANDLE
Long Arm Length7.156 INCHES MINIMUM AND 7.344 INCHES MAXIMUM IN
Short Arm Length2.031 INCHES MINIMUM AND 2.219 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1660-00-026-419957038 INTERCHANGEABLE
Cover,inlet Tubing
Mine Safety Appliances Company
5330-00-358-47606456 INTERCHANGEABLE
Gasket
Teleflex Inc Electrical Systems Div
5365-00-634-711536429 INTERCHANGEABLE
Spacer,plate
Safran Power Usa Llc
6940-00-688-837057038 INTERCHANGEABLE
Keeper,cable
B/e Aerospace, Inc. Dba Interturbine Div Oxygen & PSU Systems
9905-01-041-5549 INTERCHANGEABLE
Plate,identification
5985-01-311-6836 INTERCHANGEABLE
Head Assembly,tripo
5930-01-350-2409K5701304 INTERCHANGEABLE
Switch,thermostatic
Leroi International Inc Dba Compair Leroi
5120-01-437-7919 INTERCHANGEABLE
Key,socket Head Screw
4310-01-442-334957038 INTERCHANGEABLE
Compressor
Standard Motor Products
4320-01-449-890536429 INTERCHANGEABLE
Cylinder Sleeve and Piston Assem
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
A-A-2473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
0198 1908 Blackwood J. Blackwood & Son Pty Ltd (AUS)
57038 Apex Tool Group, Llc Dba Nicholson (USA)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
0036429 New Holland Construction (USA)
GGG-K-275 TY1CL1 General Services Administration Federal Supply Service (USA)
68019 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
57038 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
7180266 Watertown Arsenal Smiwt-Re (USA)
36429 New Holland Construction (USA)
036429 New Holland Construction (USA)
B18.3 The American Society of Mechanical Engineers (USA)
Related Parts
1660-00-026-4199INTERCHANGEABLE
COVER,INLET TUBING
57038
5330-00-358-4760INTERCHANGEABLE
GASKET
6456
5365-00-634-7115INTERCHANGEABLE
SPACER,PLATE
36429
6940-00-688-8370INTERCHANGEABLE
KEEPER,CABLE
57038
9905-01-041-5549INTERCHANGEABLE
PLATE,IDENTIFICATION
5985-01-311-6836INTERCHANGEABLE
HEAD ASSEMBLY,TRIPO
5930-01-350-2409INTERCHANGEABLE
SWITCH,THERMOSTATIC
K5701304
5120-01-437-7919INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
4310-01-442-3349INTERCHANGEABLE
COMPRESSOR
57038
4320-01-449-8905INTERCHANGEABLE
CYLINDER SLEEVE AND PISTON ASSEM
36429
6630-01-617-3826INTERCHANGEABLE
BEAKERS
68019
5210-01-643-4153INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
T436.1XRL-4

Frequently Asked Questions

What is NSN 5120-00-222-1489?

NSN 5120-00-222-1489 is a Key,socket Head Screw, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-222-1489?

NSN 5120-00-222-1489 has 12 cross-referenced part numbers: A-A-2473 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 0198 1908 (Blackwood J. Blackwood & Son Pty Ltd), 57038 (Apex Tool Group, Llc Dba Nicholson), GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC), 0036429 (New Holland Construction) and 7 more.

What NSN replaces 5120-00-222-1489?

There are 12 known substitutes for 5120-00-222-1489: 1660-00-026-4199, 5330-00-358-4760, 5365-00-634-7115 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-2473?

Key specifications for A-A-2473: Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Material: STEEL OVERALL; Features Provided: SHORT SERIES. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-222-1489 still in active supply?

NSN 5120-00-222-1489 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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