PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521910Head Assembly

Sypris Electronics, Llc · NSN 5865-01-134-9494 · FSC 5865 · No Item Name Available
Verified by PartsTable
NSN 5865-01-134-9494 — this item is cataloged by the U.S. Government under National Stock Number 5865-01-134-9494. Primary manufacturer part number: 521910.
Features
  • Head Assembly — FSC 5865
  • 1 verified cross-reference
  • Primary manufacturer: Sypris Electronics, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Head Assembly, cataloged under National Stock Number 5865-01-134-9494, is classified within Federal Supply Class 5865 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Sypris Electronics, Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHead Assembly
FSC / FSG5865 — No Item Name Available (FSG 58)
ManufacturersSypris Electronics, Llc (CAGE 14028)
Technical Specifications
ParameterValue
NSN5865-01-134-9494
Primary Part Number521910
Item NameHead Assembly
FSC / FSG5865 / 58 — No Item Name Available
ManufacturerSypris Electronics, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-100-060564700 INTERCHANGEABLE
Cup,tapered Roller Bearing
Rbc Bearings Incorporated Div West Trenton Division
3110-00-151-8384L521910 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
4720-01-280-23055219-10 INTERCHANGEABLE
Hose,nonmetallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
Cross-Reference Index
Part NumberManufacturer
521910 PRIMARY Sypris Electronics, Llc (USA)
Related Parts
3110-00-100-0605INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
64700
3110-00-151-8384INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
L521910
4720-01-280-2305INTERCHANGEABLE
HOSE,NONMETALLIC
5219-10

Frequently Asked Questions

What is NSN 5865-01-134-9494?

NSN 5865-01-134-9494 is a Head Assembly, manufactured by Sypris Electronics, Llc, classified under FSC 5865 (No Item Name Available). Status: active.

What are the part numbers for NSN 5865-01-134-9494?

NSN 5865-01-134-9494 has 1 cross-referenced part number: 521910 (Sypris Electronics, Llc).

What NSN replaces 5865-01-134-9494?

There are 3 known substitutes for 5865-01-134-9494: 3110-00-100-0605, 3110-00-151-8384, 4720-01-280-2305. Verify interchangeability with system specifications before substitution.

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