PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1624Adapter,socket Wrench

Stanley Industrial & Automotive Llc · NSN 5120-01-366-8221 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-366-8221 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-366-8221. Primary manufacturer part number: A1624.
Features
  • Adapter,socket Wrench — FSC 5120
  • Outside Diameter: 1.125 INCHES MAXIMUM IN
  • Drive Surface Size: 0.500 INCHES NOMINAL FIRST END IN
  • Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Style Designator: EXTERNAL-INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Adapter,socket Wrench, cataloged under National Stock Number 5120-01-366-8221, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Stanley Industrial & Automotive Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-366-8221
Primary Part NumberA1624
Item NameAdapter,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStanley Industrial & Automotive Llc
StatusACTIVE
Outside Diameter1.125 INCHES MAXIMUM IN
Drive Surface Size0.500 INCHES NOMINAL FIRST END IN
Drive Surface Size0.750 INCHES NOMINAL SECOND END IN
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Style DesignatorEXTERNAL-INTERNAL
Drive End ShapeSQUARE SECOND END EXTERNAL
Drive End ShapeSQUARE FIRST END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3455-00-231-352553-10008 INTERCHANGEABLE
Cutter,milling,shell End
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5330-00-297-65567375815 INTERCHANGEABLE
Gasket
U S Army Tank Automotive Command Amsta-Im-Mm
4730-00-722-3595W1179 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Mueller Brass Co.
5315-01-333-5116A1624 INTERCHANGEABLE
Pin,straight,headless
Thern Inc
8455-01-528-8466 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-664-2639 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-713-6265 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-713-6300 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1624 PRIMARY Stanley Industrial & Automotive Llc (USA)
Related Parts
3455-00-231-3525INTERCHANGEABLE
CUTTER,MILLING,SHELL END
53-10008
5330-00-297-6556INTERCHANGEABLE
GASKET
7375815
4730-00-722-3595INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
W1179
5315-01-333-5116INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
A1624
8455-01-528-8466INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-664-2639INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-713-6265INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-713-6300INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 5120-01-366-8221?

NSN 5120-01-366-8221 is a Adapter,socket Wrench, manufactured by Stanley Industrial & Automotive Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-366-8221?

NSN 5120-01-366-8221 has 1 cross-referenced part number: A1624 (Stanley Industrial & Automotive Llc).

What NSN replaces 5120-01-366-8221?

There are 8 known substitutes for 5120-01-366-8221: 3455-00-231-3525, 5330-00-297-6556, 4730-00-722-3595 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1624?

Key specifications for A1624: Outside Diameter: 1.125 INCHES MAXIMUM IN; Overall Length: 1.688 INCHES NOMINAL IN; Drive Surface Size: 0.500 INCHES NOMINAL FIRST END IN; Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN. 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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