PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278GPliers,slip Joint

The Stanley Works Dba Stanley Proto · NSN 5120-01-398-9391 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-9391 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-9391. Primary manufacturer part number: 278G.
Features
  • Pliers,slip Joint — FSC 5120
  • Jaw Adjustment Positions: 2
  • Features Provided: COMFORT GRIP HANDLE
  • Pliers Style Designator: STRAIGHT NOSE
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Specification/standard Data: 05047-ASME B107.500 CAT 23 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS AND A STYLE
  • 15 verified cross-references
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Pliers,slip Joint, cataloged under National Stock Number 5120-01-398-9391, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-398-9391
Primary Part Number278G
Item NamePliers,slip Joint
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Jaw Adjustment Positions2
Features ProvidedCOMFORT GRIP HANDLE
Pliers Style DesignatorSTRAIGHT NOSE
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Specification/standard Data05047-ASME B107.500 CAT 23 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data2 TYPE AND 1 CLASS AND A STYLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5998-00-658-3301840-98 INTERCHANGEABLE
Circuit Card Assembly
Rosemount Aerospace Inc Dba Rosemount Aerospace Inc
5305-01-005-809045379 INTERCHANGEABLE
Screw,machine
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5962-01-237-1546 INTERCHANGEABLE
Microcircuit,digital
6685-01-366-311984098 INTERCHANGEABLE
Thermostat,flow Control
Dover Corp Groen Div
Cross-Reference Index
Part NumberManufacturer
278G The Stanley Works Dba Stanley Proto (USA)
9-45379 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
3R265 W.w. Grainger, Inc. Div Government Sales Division (USA)
J278G The Stanley Works Dba Stanley Proto (USA)
45379 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
B107.23 TY2CL1STA General Services Administration Federal Supply Service (USA)
B107.500 CAT 23 TY2CL1STA General Services Administration Federal Supply Service (USA)
B107.23 TY1CL1STA General Services Administration Federal Supply Service (USA)
B107.500 The American Society of Mechanical Engineers (USA)
STP 278G Kipper Tool Company Dba Kipper Management Inc (USA)
00945379000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
B107.23 The American Society of Mechanical Engineers (USA)
P28A Stanley Industrial & Automotive Llc (USA)
528 Channellock, Inc (USA)
84-098 Stanley Tools Div of Stanley Works (USA)
Related Parts
5998-00-658-3301INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
840-98
5305-01-005-8090INTERCHANGEABLE
SCREW,MACHINE
45379
5962-01-237-1546INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6685-01-366-3119INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
84098

Frequently Asked Questions

What is NSN 5120-01-398-9391?

NSN 5120-01-398-9391 is a Pliers,slip Joint, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-398-9391?

NSN 5120-01-398-9391 has 15 cross-referenced part numbers: 278G (The Stanley Works Dba Stanley Proto), 9-45379 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 3R265 (W.w. Grainger, Inc. Div Government Sales Division), J278G (The Stanley Works Dba Stanley Proto), 45379 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial) and 10 more.

What NSN replaces 5120-01-398-9391?

There are 4 known substitutes for 5120-01-398-9391: 5998-00-658-3301, 5305-01-005-8090, 5962-01-237-1546 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278G?

Key specifications for 278G: Jaw Adjustment Positions: 2; Features Provided: COMFORT GRIP HANDLE; Pliers Style Designator: STRAIGHT NOSE; Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-398-9391 still in active supply?

NSN 5120-01-398-9391 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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