PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525-7Coupling Assembly,p

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 1650-00-118-6866 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-118-6866 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-118-6866. Primary manufacturer part number: 525-7.
Features
  • Coupling Assembly,p — FSC 1650
  • 2 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupling Assembly,p, cataloged under National Stock Number 1650-00-118-6866, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCoupling Assembly,p
FSC / FSG1650 — No Item Name Available (FSG 16)
ManufacturersOntic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Donallco Inc (CAGE 56705)
Technical Specifications
ParameterValue
NSN1650-00-118-6866
Primary Part Number525-7
Item NameCoupling Assembly,p
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-065-56015257 INTERCHANGEABLE
Switch,trigger
Skil Corp
5330-00-107-00575257 INTERCHANGEABLE
Seal
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5330-00-286-687343-325 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
6105-00-606-6456SMD71714ANDSMC171585 INTERCHANGEABLE
Motor,alternating Current
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-847-01705257 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5910-00-933-4061922-0583-070 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5306-01-068-45835166105 INTERCHANGEABLE
Bolt,ring
Naval Sea Systems Command
5950-01-098-86327890190-001 INTERCHANGEABLE
Transformer,power
L3harris Mas Inc Div L3harris Mas Inc.
5905-01-279-93895257 INTERCHANGEABLE
Resistor,thermal
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
6505-01-347-0868 INTERCHANGEABLE
Sodium Chloride Inhalation Solut
Cross-Reference Index
Part NumberManufacturer
525-7 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
525-7 Donallco Inc (USA)
Related Parts
5930-00-065-5601INTERCHANGEABLE
SWITCH,TRIGGER
5257
5330-00-107-0057INTERCHANGEABLE
SEAL
5257
5330-00-286-6873INTERCHANGEABLE
SEAL,PLAIN ENCASED
43-325
6105-00-606-6456INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
SMD71714ANDSMC171585
5975-00-847-0170INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5257
5910-00-933-4061INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
922-0583-070
5306-01-068-4583INTERCHANGEABLE
BOLT,RING
5166105
5950-01-098-8632INTERCHANGEABLE
TRANSFORMER,POWER
7890190-001
5905-01-279-9389INTERCHANGEABLE
RESISTOR,THERMAL
5257
6505-01-347-0868INTERCHANGEABLE
SODIUM CHLORIDE INHALATION SOLUT
5330-01-368-3911INTERCHANGEABLE
RETAINER,PACKING
5257
5120-01-526-3289INTERCHANGEABLE
INSERTER,SEAL
5257

Frequently Asked Questions

What is NSN 1650-00-118-6866?

NSN 1650-00-118-6866 is a Coupling Assembly,p, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-118-6866?

NSN 1650-00-118-6866 has 2 cross-referenced part numbers: 525-7 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 525-7 (Donallco Inc).

What NSN replaces 1650-00-118-6866?

There are 12 known substitutes for 1650-00-118-6866: 5930-00-065-5601, 5330-00-107-0057, 5330-00-286-6873 and 9 more. Verify interchangeability with system specifications before substitution.

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