PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U4Grinding Machine,cylindrical

Mitts and Merrill Inc · NSN 3415-00-869-0553 · FSC 3415 · No Item Name Available
Verified by PartsTable
NSN 3415-00-869-0553 — this item is cataloged by the U.S. Government under National Stock Number 3415-00-869-0553. Primary manufacturer part number: U4.
Features
  • Grinding Machine,cylindrical — FSC 3415
  • Horsepower Rating: 5.00
  • Wheel Maximum Diameter: 14.000 INCHES IN
  • Center to Center Distance: 48.000 INCHES NOMINAL IN
  • Frequency in Hertz: 60.0
  • Current Type: AC
  • Voltage in Volts: 460.0
  • Design Type: UNIVERSAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Grinding Machine,cylindrical, cataloged under National Stock Number 3415-00-869-0553, is classified within Federal Supply Class 3415 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Mitts and Merrill Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3415-00-869-0553
Primary Part NumberU4
Item NameGrinding Machine,cylindrical
FSC / FSG3415 / 34 — No Item Name Available
ManufacturerMitts and Merrill Inc
StatusACTIVE
Horsepower Rating5.00
Wheel Maximum Diameter14.000 INCHES IN
Center to Center Distance48.000 INCHES NOMINAL IN
Frequency in Hertz60.0
Current TypeAC
Voltage in Volts460.0
Design TypeUNIVERSAL
Head Stock Swivel Adjustment360 DEG
Power SourceELECTRIC MOTOR
Wheel Head Attachment Diameter and Type5.000 INCHES NOMINAL SPINDLE IN
Maximum Rated Swing14.000 INCHES IN
Wheel Head Swivel Adjustment30 DEG UPPER SWIVEL ADJUSTMENT EACH WAY,90 DEG LOWER SWIVEL ADJUSTMENTEACH WAY
Current Rating in Amps1.5
Furnished Items and QuantityCOLLETS,RUBBER FLEX,0.063 IN. TO 1.375 IN. CAPACITY 1 SET,INTERNALGRINDING QUILLS,1.500 IN. MAX. HOLE DEPTH,0.750 IN. MIN. WHEEL DIA. BY1.000 IN. WIDE BY 0.375 IN. HOLE,1 EA,3.000 IN. MAX. HOLE DEPTH,0.750IN. MIN. WHEEL DIA. BY 1.000 IN. WIDE BY 0.375 IN. HOLE,1 EA,4.000IN. MAX. HOLE DEPTH,0.875 IN. MIN. WHEEL DIA. BY 1.000 IN. WIDE BY 0.375IN. HOLE,1 EA,RADIAL TRUING DEVICE,TABLE TYPE 1.000 IN. MAX. RADIUS,1 EA,POSITIVE TABLE STOP WITH MICROMETER SCREW AND DIAL INDICATOR,1 EA,ROTARY TYPE PERMANENT MAGNETIC CHUCK,10.000 IN. DIA. WITH ADAPTER,1 EA,JACOBS COLLET CHUCK 0.063 IN. TO 1.375 IN. CAPACITY,1 EA,GRINDING WHEELEQUIPMENT FOR 18.000 IN. GRINDING WHEEL IN
PhaseTHREE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3455-00-140-3041 INTERCHANGEABLE
File,rotary
5945-00-221-6499 INTERCHANGEABLE
Cover,electrical Relay
6810-00-227-0404 INTERCHANGEABLE
Uranyl Acetate,dihydrate
4420-00-360-2459 INTERCHANGEABLE
Heater,fluid,industrial
5905-00-868-5368 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
3415-00-914-2052 INTERCHANGEABLE
Grinding Machine,cylindrical
5940-01-084-1371U-4 INTERCHANGEABLE
Terminal Board
Powers Holdings Inc Dba Fire Brick Engineers Co Div Curtis Industries
3415-01-145-3902 INTERCHANGEABLE
Grinding Machine,cylindrical
5340-01-364-376530-FW-0045 INTERCHANGEABLE
Lever,manual Control
Star Mfg Intl Toastwell
3415-01-439-5156 INTERCHANGEABLE
Grinding Machine,cylindrical
Cross-Reference Index
Part NumberManufacturer
U4 Mitts and Merrill Inc (USA)
MILG23823 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3455-00-140-3041INTERCHANGEABLE
FILE,ROTARY
5945-00-221-6499INTERCHANGEABLE
COVER,ELECTRICAL RELAY
6810-00-227-0404INTERCHANGEABLE
URANYL ACETATE,DIHYDRATE
4420-00-360-2459INTERCHANGEABLE
HEATER,FLUID,INDUSTRIAL
5905-00-868-5368INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
3415-00-914-2052INTERCHANGEABLE
GRINDING MACHINE,CYLINDRICAL
5940-01-084-1371INTERCHANGEABLE
TERMINAL BOARD
U-4
3415-01-145-3902INTERCHANGEABLE
GRINDING MACHINE,CYLINDRICAL
5340-01-364-3765INTERCHANGEABLE
LEVER,MANUAL CONTROL
30-FW-0045
3415-01-439-5156INTERCHANGEABLE
GRINDING MACHINE,CYLINDRICAL

Frequently Asked Questions

What is NSN 3415-00-869-0553?

NSN 3415-00-869-0553 is a Grinding Machine,cylindrical, manufactured by Mitts and Merrill Inc, classified under FSC 3415 (No Item Name Available). Status: active.

What are the part numbers for NSN 3415-00-869-0553?

NSN 3415-00-869-0553 has 2 cross-referenced part numbers: U4 (Mitts and Merrill Inc), MILG23823 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3415-00-869-0553?

There are 10 known substitutes for 3415-00-869-0553: 3455-00-140-3041, 5945-00-221-6499, 6810-00-227-0404 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of U4?

Key specifications for U4: Horsepower Rating: 5.00; Wheel Maximum Diameter: 14.000 INCHES IN; Center to Center Distance: 48.000 INCHES NOMINAL IN; Frequency in Hertz: 60.0. 16 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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