PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R646Bearing

Porta Drill Inc · NSN 3110-00-708-6504 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-708-6504 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-708-6504. Primary manufacturer part number: R646.
Features
  • Bearing — FSC 3110
  • 5 verified cross-references
  • Primary manufacturer: Porta Drill Inc
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing, cataloged under National Stock Number 3110-00-708-6504, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Porta Drill Inc. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersU S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Fruehauf Corp (CAGE 23705); Rogers Brothers Corp (CAGE 51501); Johnson Bronze Co (CAGE 75174); Porta Drill Inc (CAGE 66155)
Technical Specifications
ParameterValue
NSN3110-00-708-6504
Primary Part NumberR646
Item NameBearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerPorta Drill Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-051-200111031 INTERCHANGEABLE
Transformer,power
Staco Energy Products Co Dba Staco Energy Products Co
5930-00-407-1964 INTERCHANGEABLE
Switch,toggle
4820-00-595-18442700-1IN INTERCHANGEABLE
Valve,gate
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
9905-01-047-769156501-5 INTERCHANGEABLE
Plate,identification
Safe Flight Instrument, Llc
5325-01-186-7587 INTERCHANGEABLE
Ring,retaining
4730-01-344-0725555-2 INTERCHANGEABLE
Flange,pipe,blind
Crane Co Div Valve Div
5120-01-399-9692 INTERCHANGEABLE
Socket,socket Wrench
4235-01-433-87005552 INTERCHANGEABLE
Sorbent,hazardous Material
Green Stuff Absorbent Products Inc
5306-01-546-438487310098 INTERCHANGEABLE
Bolt,machine
Cnh Industrial America Llc Dba Cnh America
Cross-Reference Index
Part NumberManufacturer
7086504 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
565015 Fruehauf Corp (USA)
R646 Rogers Brothers Corp (USA)
5552 Johnson Bronze Co (USA)
R646 PRIMARY Porta Drill Inc (USA)
Related Parts
5950-00-051-2001INTERCHANGEABLE
TRANSFORMER,POWER
11031
5930-00-407-1964INTERCHANGEABLE
SWITCH,TOGGLE
4820-00-595-1844INTERCHANGEABLE
VALVE,GATE
2700-1IN
9905-01-047-7691INTERCHANGEABLE
PLATE,IDENTIFICATION
56501-5
5325-01-186-7587INTERCHANGEABLE
RING,RETAINING
4730-01-344-0725INTERCHANGEABLE
FLANGE,PIPE,BLIND
555-2
5120-01-399-9692INTERCHANGEABLE
SOCKET,SOCKET WRENCH
4235-01-433-8700INTERCHANGEABLE
SORBENT,HAZARDOUS MATERIAL
5552
5306-01-546-4384INTERCHANGEABLE
BOLT,MACHINE
87310098

Frequently Asked Questions

What is NSN 3110-00-708-6504?

NSN 3110-00-708-6504 is a Bearing, manufactured by Porta Drill Inc, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-708-6504?

NSN 3110-00-708-6504 has 5 cross-referenced part numbers: 7086504 (U S Army Tank Automotive Command Amsta-Im-Mm), 565015 (Fruehauf Corp), R646 (Rogers Brothers Corp), 5552 (Johnson Bronze Co), R646 (Porta Drill Inc).

What NSN replaces 3110-00-708-6504?

There are 9 known substitutes for 3110-00-708-6504: 5950-00-051-2001, 5930-00-407-1964, 4820-00-595-1844 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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