PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B18.3Key Set,socket Head Screw

The American Society of Mechanical Engineers · NSN 5120-01-599-4528 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-599-4528 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-599-4528. Primary manufacturer part number: B18.3.
Features
  • Key Set,socket Head Screw — FSC 5120
  • Key Quantity: 13
  • Handle Type: L-STYLE
  • Container Type: INDEX HOLDER
  • Surface Treatment: OXIDE
  • Material: STEEL
  • Features Provided: LONG SERIES AND BALL END
  • Key Characteristic: CONTAINS HEX KEYS SIZE 0.050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 AND 3/8 IN. IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel construction
General Description

The Key Set,socket Head Screw, cataloged under National Stock Number 5120-01-599-4528, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, 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
NSN5120-01-599-4528
Primary Part NumberB18.3
Item NameKey Set,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Key Quantity13
Handle TypeL-STYLE
Container TypeINDEX HOLDER
Surface TreatmentOXIDE
MaterialSTEEL
Features ProvidedLONG SERIES AND BALL END
Key CharacteristicCONTAINS HEX KEYS SIZE 0.050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 AND 3/8 IN. IN
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5826-00-093-6280101528 INTERCHANGEABLE
Cover,special
Kearfott Corporation Div Guidance and Navigation Division
5305-00-206-1065 INTERCHANGEABLE
Screw,cap,hexagon Head
5310-01-209-694656190 INTERCHANGEABLE
Washer
Leroi International Inc Dba Compair Leroi
5120-01-395-544456190 INTERCHANGEABLE
Key Set,socket Head Screw
Matco Tools Corp Div Matco Tools
5895-01-411-78544981A113598-1 INTERCHANGEABLE
Panel,indicator
L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division
6160-01-428-9102 INTERCHANGEABLE
Retainer,battery
8465-01-470-625356196 INTERCHANGEABLE
Strap,involuntary,restraint
Armament Systems and Procedures Inc
8465-01-563-300556190 INTERCHANGEABLE
Strap,involuntary,restraint
Asp
Cross-Reference Index
Part NumberManufacturer
B18.3 The American Society of Mechanical Engineers (USA)
56190 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
56190 Armstrong Bros Tool Co (USA)
456720001706 Ncb Hungary (honvedsegi Egyseges Termekkod) (HUN)
56190 Apex Tool Group, Llc Dba Nicholson (USA)
SHKS13C Mac Tools (USA)
Related Parts
5826-00-093-6280INTERCHANGEABLE
COVER,SPECIAL
101528
5305-00-206-1065INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5310-01-209-6946INTERCHANGEABLE
WASHER
56190
5120-01-395-5444INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
56190
5895-01-411-7854INTERCHANGEABLE
PANEL,INDICATOR
4981A113598-1
6160-01-428-9102INTERCHANGEABLE
RETAINER,BATTERY
8465-01-470-6253INTERCHANGEABLE
STRAP,INVOLUNTARY,RESTRAINT
56196
8465-01-563-3005INTERCHANGEABLE
STRAP,INVOLUNTARY,RESTRAINT
56190

Frequently Asked Questions

What is NSN 5120-01-599-4528?

NSN 5120-01-599-4528 is a Key Set,socket Head Screw, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-599-4528?

NSN 5120-01-599-4528 has 6 cross-referenced part numbers: B18.3 (The American Society of Mechanical Engineers), 56190 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 56190 (Armstrong Bros Tool Co), 456720001706 (Ncb Hungary (honvedsegi Egyseges Termekkod)), 56190 (Apex Tool Group, Llc Dba Nicholson) and 1 more.

What NSN replaces 5120-01-599-4528?

There are 8 known substitutes for 5120-01-599-4528: 5826-00-093-6280, 5305-00-206-1065, 5310-01-209-6946 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B18.3?

Key specifications for B18.3: Key Quantity: 13; Handle Type: L-STYLE; Container Type: INDEX HOLDER; Surface Treatment: OXIDE. 8 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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