PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2021450NClamp,bar

Stanley Tools Div of Stanley Works · NSN 5120-01-490-6490 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-490-6490 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-490-6490. Primary manufacturer part number: 2021450N.
Features
  • Clamp,bar — FSC 5120
  • General Characteristics Item Description: GENERAL PURPOSE TYPE, CLAMP AND SPREADER; 0 TO 50 INCH JAW CAPACITY; 3-1/4 INCH THROAT CAPACITY; QUICK RELEASE FINGER TRIGGER; SPREADING CAPACITY 7-1/2 TO 58-5/8 INCH; NON-MARRING PADS; FEATURES HEAT TREAT STEEL BAR, RESIN CONSTRUCTION, MICRO-ADJUSTABILITY PISTOL GRIP HANDLE IN
  • 8 verified cross-references
  • Primary manufacturer: Stanley Tools Div of Stanley Works
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Clamp,bar, cataloged under National Stock Number 5120-01-490-6490, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Stanley Tools Div of Stanley Works. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-490-6490
Primary Part Number2021450N
Item NameClamp,bar
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStanley Tools Div of Stanley Works
StatusACTIVE
General Characteristics Item DescriptionGENERAL PURPOSE TYPE, CLAMP AND SPREADER; 0 TO 50 INCH JAW CAPACITY; 3-1/4 INCH THROAT CAPACITY; QUICK RELEASE FINGER TRIGGER; SPREADING CAPACITY 7-1/2 TO 58-5/8 INCH; NON-MARRING PADS; FEATURES HEAT TREAT STEEL BAR, RESIN CONSTRUCTION, MICRO-ADJUSTABILITY PISTOL GRIP HANDLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5120-01-372-307400512 INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
5120-01-372-3075518QCN INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
5120-01-372-3122506QCN INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
5120-01-372-3123524QCN INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
5120-01-372-3124536QCN INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
5120-01-372-3125546ZR INTERCHANGEABLE
Clamp,bar
Stanley Tools Div of Stanley Works
Cross-Reference Index
Part NumberManufacturer
QUICK-GRIP Irwin Industrial Tool Company (USA)
2021450N PRIMARY Stanley Tools Div of Stanley Works (USA)
550QC Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
5120-01-490-6490 PRIMARY General Services Administration Federal Supply Service (USA)
550 Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
550QC Irwin Industrial Tool Company (USA)
QUICK-GRIP Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
550 Irwin Industrial Tool Company (USA)
Related Parts
5120-01-372-3074INTERCHANGEABLE
CLAMP,BAR
00512
5120-01-372-3075INTERCHANGEABLE
CLAMP,BAR
518QCN
5120-01-372-3122INTERCHANGEABLE
CLAMP,BAR
506QCN
5120-01-372-3123INTERCHANGEABLE
CLAMP,BAR
524QCN
5120-01-372-3124INTERCHANGEABLE
CLAMP,BAR
536QCN
5120-01-372-3125INTERCHANGEABLE
CLAMP,BAR
546ZR

Frequently Asked Questions

What is NSN 5120-01-490-6490?

NSN 5120-01-490-6490 is a Clamp,bar, manufactured by Stanley Tools Div of Stanley Works, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-490-6490?

NSN 5120-01-490-6490 has 8 cross-referenced part numbers: QUICK-GRIP (Irwin Industrial Tool Company), 2021450N (Stanley Tools Div of Stanley Works), 550QC (Irwin Industrial Tool Company Dba Irwin Construction Accessories), 5120-01-490-6490 (General Services Administration Federal Supply Service), 550 (Irwin Industrial Tool Company Dba Irwin Construction Accessories) and 3 more.

What NSN replaces 5120-01-490-6490?

There are 6 known substitutes for 5120-01-490-6490: 5120-01-372-3074, 5120-01-372-3075, 5120-01-372-3122 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2021450N?

Key specifications for 2021450N: General Characteristics Item Description: GENERAL PURPOSE TYPE, CLAMP AND SPREADER; 0 TO 50 INCH JAW CAPACITY; 3-1/4 INCH THROAT CAPACITY; QUICK RELEASE FINGER TRIGGER; SPREADING CAPACITY 7-1/2 TO 58-5/8 INCH; NON-MARRING PADS; FEATURES HEAT TREAT STEEL BAR, RESIN CONSTRUCTION, MICRO-ADJUSTABILITY PISTOL GRIP HANDLE IN. 1 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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