PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

02800Caulking Tool,hand

Mayhew Steel Products Inc · NSN 5120-00-293-0478 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-293-0478 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-293-0478. Primary manufacturer part number: 02800.
Features
  • Caulking Tool,hand — FSC 5120
  • Width Across Flats: 0.6250 INCHES NOMINAL IN
  • Nose End Width: 1.500 INCHES NOMINAL IN
  • Style Designator: OFFSET, CURVED NOSE, INSIDE
  • 5 verified cross-references
  • Primary manufacturer: Mayhew Steel Products Inc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Caulking Tool,hand, cataloged under National Stock Number 5120-00-293-0478, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Mayhew Steel Products Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-293-0478
Primary Part Number02800
Item NameCaulking Tool,hand
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMayhew Steel Products Inc
StatusACTIVE
Width Across Flats0.6250 INCHES NOMINAL IN
Nose End Width1.500 INCHES NOMINAL IN
Style DesignatorOFFSET, CURVED NOSE, INSIDE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-059853375 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5360-00-139-501630013 INTERCHANGEABLE
Spring,test Equipment
Sypris Electronics, Llc
5360-00-145-247230013 INTERCHANGEABLE
Spring,helical,compression
Hubbell Industrial Controls, Inc
5120-00-223-129430045 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
5120-00-223-129830008 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
5120-00-293-047930007 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
5120-00-293-048230009 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
5120-00-293-048330019 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
2520-00-353-23423202K1779 INTERCHANGEABLE
Shaft,axle,automotive
Meritor Heavy Vehicle Systems, Llc
5905-00-496-8159300STD10K0HM3-5WP0RM3PCT INTERCHANGEABLE
Resistor,variable,wire Wound,non
Vishay Sprague Inc
Cross-Reference Index
Part NumberManufacturer
GGG-C-135 CL2ST1 General Services Administration Federal Supply Service (USA)
30013 Mephisto Tool Co Inc (USA)
GGG-C-135 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
02800 PRIMARY Mayhew Steel Products Inc (USA)
028 Mephisto Tool Co Inc (USA)
Related Parts
3110-00-100-0598INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
53375
5360-00-139-5016INTERCHANGEABLE
SPRING,TEST EQUIPMENT
30013
5360-00-145-2472INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
30013
5120-00-223-1294INTERCHANGEABLE
CAULKING TOOL,HAND
30045
5120-00-223-1298INTERCHANGEABLE
CAULKING TOOL,HAND
30008
5120-00-293-0479INTERCHANGEABLE
CAULKING TOOL,HAND
30007
5120-00-293-0482INTERCHANGEABLE
CAULKING TOOL,HAND
30009
5120-00-293-0483INTERCHANGEABLE
CAULKING TOOL,HAND
30019
2520-00-353-2342INTERCHANGEABLE
SHAFT,AXLE,AUTOMOTIVE
3202K1779
5905-00-496-8159INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
300STD10K0HM3-5WP0RM3PCT
5120-00-555-2639INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
12200
5120-00-595-8223INTERCHANGEABLE
CAULKING TOOL,HAND
30046

Frequently Asked Questions

What is NSN 5120-00-293-0478?

NSN 5120-00-293-0478 is a Caulking Tool,hand, manufactured by Mayhew Steel Products Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-293-0478?

NSN 5120-00-293-0478 has 5 cross-referenced part numbers: GGG-C-135 CL2ST1 (General Services Administration Federal Supply Service), 30013 (Mephisto Tool Co Inc), GGG-C-135 (Federal Specifications Promulgated by General Services Administration Washington DC), 02800 (Mayhew Steel Products Inc), 028 (Mephisto Tool Co Inc).

What NSN replaces 5120-00-293-0478?

There are 12 known substitutes for 5120-00-293-0478: 3110-00-100-0598, 5360-00-139-5016, 5360-00-145-2472 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 02800?

Key specifications for 02800: Width Across Flats: 0.6250 INCHES NOMINAL IN; Nose End Width: 1.500 INCHES NOMINAL IN; Style Designator: OFFSET, CURVED NOSE, INSIDE; Overall Length: 8.000 INCHES NOMINAL IN. 4 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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