PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20RClamp,plier

Stanley Tools Div of Stanley Works · NSN 5120-01-431-6261 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-431-6261 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-431-6261. Primary manufacturer part number: 20R.
Features
  • Clamp,plier — FSC 5120
  • Closed Overall Length: 9.000 INCHES NOMINAL IN
  • Locking Clamp Type: CHAIN
  • 3 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,plier, cataloged under National Stock Number 5120-01-431-6261, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5120-01-431-6261
Primary Part Number20R
Item NameClamp,plier
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStanley Tools Div of Stanley Works
StatusACTIVE
Closed Overall Length9.000 INCHES NOMINAL IN
Locking Clamp TypeCHAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2640-00-158-5617938-696 INTERCHANGEABLE
Flap,inner Tube,pneumatic Tire
Specialty Tires & Wheels
5120-00-889-205020R INTERCHANGEABLE
Pliers,chain Wrench
Petersen Mfg Co Inc
4510-01-027-4739 INTERCHANGEABLE
Valve,float,water Closet Tank
4820-01-118-8490 INTERCHANGEABLE
Cap,valve
3040-01-294-863620-R INTERCHANGEABLE
Shaft,shouldered
Thermal Engineering Co a Div of Sea Kay Co Inc
9905-01-461-775320-R INTERCHANGEABLE
Reflector,indicating,clearance
J. W. Speaker Corporation Dba Jw Speaker Corp
4320-01-664-118820RSB INTERCHANGEABLE
Pump Unit,centrifugal
Itt Rule Industries Inc Danforth Div
4820-01-690-1047 INTERCHANGEABLE
Cap,valve
Cross-Reference Index
Part NumberManufacturer
20R Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
20R PRIMARY Stanley Tools Div of Stanley Works (USA)
20R Irwin Industrial Tool Company (USA)
Related Parts
2640-00-158-5617INTERCHANGEABLE
FLAP,INNER TUBE,PNEUMATIC TIRE
938-696
5120-00-889-2050INTERCHANGEABLE
PLIERS,CHAIN WRENCH
20R
4510-01-027-4739INTERCHANGEABLE
VALVE,FLOAT,WATER CLOSET TANK
4820-01-118-8490INTERCHANGEABLE
CAP,VALVE
3040-01-294-8636INTERCHANGEABLE
SHAFT,SHOULDERED
20-R
9905-01-461-7753INTERCHANGEABLE
REFLECTOR,INDICATING,CLEARANCE
20-R
4320-01-664-1188INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
20RSB
4820-01-690-1047INTERCHANGEABLE
CAP,VALVE

Frequently Asked Questions

What is NSN 5120-01-431-6261?

NSN 5120-01-431-6261 is a Clamp,plier, 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 5120-01-431-6261?

NSN 5120-01-431-6261 has 3 cross-referenced part numbers: 20R (Irwin Industrial Tool Company Dba Irwin Construction Accessories), 20R (Stanley Tools Div of Stanley Works), 20R (Irwin Industrial Tool Company).

What NSN replaces 5120-01-431-6261?

There are 8 known substitutes for 5120-01-431-6261: 2640-00-158-5617, 5120-00-889-2050, 4510-01-027-4739 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20R?

Key specifications for 20R: Closed Overall Length: 9.000 INCHES NOMINAL IN; Special Features: 18 IN. CHAIN LG IN; Locking Clamp Type: CHAIN. 3 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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