PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66251Attenuator Assembly

Viavi Solutionsllc · NSN 5985-01-477-1810 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-477-1810 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-477-1810. Primary manufacturer part number: 66251.
Features
  • Attenuator Assembly — FSC 5985
  • 2 verified cross-references
  • Primary manufacturer: Viavi Solutionsllc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator Assembly, cataloged under National Stock Number 5985-01-477-1810, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Viavi Solutionsllc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-477-1810
Primary Part Number66251
Item NameAttenuator Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerViavi Solutionsllc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-310-908066251 INTERCHANGEABLE
Gasket
Curtiss-Wright Controls, Inc. Div Actuation Division
4730-00-595-0083 INTERCHANGEABLE
Coupling Half,quick Disconnect
3040-01-006-757414-73909-3 INTERCHANGEABLE
Connecting Link,rigid
Northrop Grumman Systems Corporation
6105-01-353-07726625-1 INTERCHANGEABLE
Stator,motor
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
4730-01-379-213366251 INTERCHANGEABLE
Reducer,pipe
Mine Safety Appliances Company
8125-01-497-2341101010 INTERCHANGEABLE
Bottle,screw Cap
Fluid Defense Systems, Llc Dba Fluid Defense Systems
Cross-Reference Index
Part NumberManufacturer
7010-7832-800 Viavi Solutionsllc (USA)
66251 PRIMARY Viavi Solutionsllc (USA)
Related Parts
5330-00-310-9080INTERCHANGEABLE
GASKET
66251
4730-00-595-0083INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3040-01-006-7574INTERCHANGEABLE
CONNECTING LINK,RIGID
14-73909-3
6105-01-353-0772INTERCHANGEABLE
STATOR,MOTOR
6625-1
4730-01-379-2133INTERCHANGEABLE
REDUCER,PIPE
66251
8125-01-497-2341INTERCHANGEABLE
BOTTLE,SCREW CAP
101010

Frequently Asked Questions

What is NSN 5985-01-477-1810?

NSN 5985-01-477-1810 is a Attenuator Assembly, manufactured by Viavi Solutionsllc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-477-1810?

NSN 5985-01-477-1810 has 2 cross-referenced part numbers: 7010-7832-800 (Viavi Solutionsllc), 66251 (Viavi Solutionsllc).

What NSN replaces 5985-01-477-1810?

There are 6 known substitutes for 5985-01-477-1810: 5330-00-310-9080, 4730-00-595-0083, 3040-01-006-7574 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66251?

Key specifications for 66251: End Item Identification: GENERAL PURPOSE MAINTENANCE FACILITY AND MISCELLANEOUS ELECTRONICS EQUIPMENT. 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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