PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3901Capsule,link Assemb

Kearflex Engineering Company · NSN 6610-01-219-6825 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-01-219-6825 — this item is cataloged by the U.S. Government under National Stock Number 6610-01-219-6825. Primary manufacturer part number: 3901.
Features
  • Capsule,link Assemb — FSC 6610
  • 1 verified cross-reference
  • Primary manufacturer: Kearflex Engineering Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Capsule,link Assemb, cataloged under National Stock Number 6610-01-219-6825, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kearflex Engineering Company. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN6610-01-219-6825
Primary Part Number3901
Item NameCapsule,link Assemb
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerKearflex Engineering Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6520-00-043-0843C-180 INTERCHANGEABLE
Crown Set,dental,temporary
3m Company Div 3m Espe Div.
8040-00-144-9789 INTERCHANGEABLE
Primer,adhesive
4720-00-194-93373901-87 INTERCHANGEABLE
Hose Assembly,nonmetallic
Aqualung Usa, Inc
5330-00-235-95303901 INTERCHANGEABLE
Gasket
Lawler Manufacturing Company, Inc.
3120-00-339-26068157P INTERCHANGEABLE
Bushing,sleeve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5340-00-634-7797390-1 INTERCHANGEABLE
Loop,strap Fastener
Buckles International, Inc.
6625-00-649-7838390-1 INTERCHANGEABLE
Test Set,crystal Unit,quartz
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
4330-00-736-51773901 INTERCHANGEABLE
Filter,glass,fluted
Illinois Tool Works, Inc. Div Magnaflux
5985-01-052-1272390-1 INTERCHANGEABLE
Antenna
Shakespeare Company, Llc Div Military Electronics
4940-01-081-72843901 INTERCHANGEABLE
Stand,maintenance,armature
Prj Equipment Co
Cross-Reference Index
Part NumberManufacturer
3901 PRIMARY Kearflex Engineering Company (USA)
Related Parts
6520-00-043-0843INTERCHANGEABLE
CROWN SET,DENTAL,TEMPORARY
C-180
8040-00-144-9789INTERCHANGEABLE
PRIMER,ADHESIVE
4720-00-194-9337INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3901-87
5330-00-235-9530INTERCHANGEABLE
GASKET
3901
3120-00-339-2606INTERCHANGEABLE
BUSHING,SLEEVE
8157P
5340-00-634-7797INTERCHANGEABLE
LOOP,STRAP FASTENER
390-1
6625-00-649-7838INTERCHANGEABLE
TEST SET,CRYSTAL UNIT,QUARTZ
390-1
4330-00-736-5177INTERCHANGEABLE
FILTER,GLASS,FLUTED
3901
5985-01-052-1272INTERCHANGEABLE
ANTENNA
390-1
4940-01-081-7284INTERCHANGEABLE
STAND,MAINTENANCE,ARMATURE
3901
6625-01-544-8410INTERCHANGEABLE
LEAD,TEST
3901
4510-01-553-3827INTERCHANGEABLE
SHOWER HEAD
3901

Frequently Asked Questions

What is NSN 6610-01-219-6825?

NSN 6610-01-219-6825 is a Capsule,link Assemb, manufactured by Kearflex Engineering Company, classified under FSC 6610 (No Item Name Available). Status: active.

What are the part numbers for NSN 6610-01-219-6825?

NSN 6610-01-219-6825 has 1 cross-referenced part number: 3901 (Kearflex Engineering Company).

What NSN replaces 6610-01-219-6825?

There are 12 known substitutes for 6610-01-219-6825: 6520-00-043-0843, 8040-00-144-9789, 4720-00-194-9337 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3901?

Key specifications for 3901: End Item Identification: AH-64 AIRFRAME, ROTARY WING AIRCRAFT. 1 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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