PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H547-1903-26D4Bearing,roller,tapered

Naval Inventory Control Point Mechanicsburg · NSN 3110-01-644-2023 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-644-2023 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-644-2023. Primary manufacturer part number: H547-1903-26D4.
Features
  • Bearing,roller,tapered — FSC 3110
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • 12 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-644-2023, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-644-2023
Primary Part NumberH547-1903-26D4
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-100-5920 INTERCHANGEABLE
Bearing,roller,tapered
Cross-Reference Index
Part NumberManufacturer
H547-1903-26D4 Naval Inventory Control Point Mechanicsburg (USA)
3490-3420 The Timken Corporation (USA)
3490-3420D4 Naval Inventory Control Point Mechanicsburg (USA)
H547-1903-26 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
H547-0001-H5471903-026 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
167-7384215-26D4 Naval Inventory Control Point Mechanicsburg (USA)
H547-0001-H5471903-026D4 Naval Inventory Control Point Mechanicsburg (USA)
H5471903-026 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
7383858-H5471903-026D4 Naval Inventory Control Point Mechanicsburg (USA)
H5471903-026D4 Naval Inventory Control Point Mechanicsburg (USA)
7383858-H5471903-026 Naval Sea Systems Command (USA)
167-7384215-26 Naval Sea Systems Command (USA)
Related Parts
3110-00-100-5920INTERCHANGEABLE
BEARING,ROLLER,TAPERED

Frequently Asked Questions

What is NSN 3110-01-644-2023?

NSN 3110-01-644-2023 is a Bearing,roller,tapered, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-644-2023?

NSN 3110-01-644-2023 has 12 cross-referenced part numbers: H547-1903-26D4 (Naval Inventory Control Point Mechanicsburg), 3490-3420 (The Timken Corporation), 3490-3420D4 (Naval Inventory Control Point Mechanicsburg), H547-1903-26 (Electric Boat Corporation Div General Dynamics Electric Boat), H547-0001-H5471903-026 (Electric Boat Corporation Div General Dynamics Electric Boat) and 7 more.

What NSN replaces 3110-01-644-2023?

There is 1 known substitute for 3110-01-644-2023: 3110-00-100-5920. Verify interchangeability with system specifications before substitution.

What are the specifications of H547-1903-26D4?

Key specifications for H547-1903-26D4: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES; Part Name Assigned by Controlling Agency: BEARING, ROLLER, TAPE. 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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