PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58LKey,socket Head Screw

Allen Mfg Co Sub of Chicago Pneumatic Tool Co · NSN 5120-00-198-5405 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-198-5405 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-198-5405. Primary manufacturer part number: 58L.
Features
  • Key,socket Head Screw — FSC 5120
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: STEEL OVERALL
  • Style Designator: L-HANDLE
  • Features Provided: LONG SERIES
  • Long Arm Length: 9.656 INCHES MINIMUM AND 9.844 INCHES MAXIMUM IN
  • Wrenching Surface Size: 0.625 INCHES NOMINAL BOTH ENDS IN
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
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 5120-00-198-5405, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Allen Mfg Co Sub of Chicago Pneumatic Tool Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 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
NSN5120-00-198-5405
Primary Part Number58L
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAllen Mfg Co Sub of Chicago Pneumatic Tool Co
StatusCANCELLED
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Style DesignatorL-HANDLE
Features ProvidedLONG SERIES
Long Arm Length9.656 INCHES MINIMUM AND 9.844 INCHES MAXIMUM IN
Wrenching Surface Size0.625 INCHES NOMINAL BOTH ENDS IN
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Short Arm Length1.781 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-054-1838 INTERCHANGEABLE
Washer,lock
5945-00-075-498058L INTERCHANGEABLE
Relay,pneumatic
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
6320-00-149-757070018-501 INTERCHANGEABLE
Indicator-Transmitter,ship's Con
The Dewey Electronics Corporation Div Pitometer Log Division
5120-00-198-540113802 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
5120-00-198-5407 INTERCHANGEABLE
Key,socket Head Screw
5120-00-198-541013910 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
5120-00-204-1995 INTERCHANGEABLE
Key,socket Head Screw
5120-00-221-803615206 INTERCHANGEABLE
Key,socket Head Screw
Eklind Tool Co
5120-00-293-008013904 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
5120-00-293-1476 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
58L Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
58028 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
41W2410-120 Marine Corps (USA)
70018 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
A-A-2473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-K-275 TY1CL2 General Services Administration Federal Supply Service (USA)
41W2410-121 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-2932 TY2 General Services Administration Federal Supply Service (USA)
A-A-2932 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
58028 Apex Tool Group, Llc Dba Nicholson (USA)
B18.3 The American Society of Mechanical Engineers (USA)
Related Parts
5310-00-054-1838INTERCHANGEABLE
WASHER,LOCK
5945-00-075-4980INTERCHANGEABLE
RELAY,PNEUMATIC
58L
6320-00-149-7570INTERCHANGEABLE
INDICATOR-TRANSMITTER,SHIP'S CON
70018-501
5120-00-198-5401INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13802
5120-00-198-5407INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-198-5410INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13910
5120-00-204-1995INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-221-8036INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
15206
5120-00-293-0080INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13904
5120-00-293-1476INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
3895-00-393-2110INTERCHANGEABLE
CABLE BLOCK PUSHER
6250-00-405-4853INTERCHANGEABLE
LAMPHOLDER
920126

Frequently Asked Questions

What is NSN 5120-00-198-5405?

NSN 5120-00-198-5405 is a Key,socket Head Screw, manufactured by Allen Mfg Co Sub of Chicago Pneumatic Tool Co, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-198-5405?

NSN 5120-00-198-5405 has 12 cross-referenced part numbers: 58L (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), 58028 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 41W2410-120 (Marine Corps), 70018 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), A-A-2473 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 7 more.

What NSN replaces 5120-00-198-5405?

There are 12 known substitutes for 5120-00-198-5405: 5310-00-054-1838, 5945-00-075-4980, 6320-00-149-7570 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58L?

Key specifications for 58L: Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Material: STEEL OVERALL; Style Designator: L-HANDLE; Features Provided: LONG SERIES. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-198-5405 still in active supply?

NSN 5120-00-198-5405 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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