PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45CAttenuator,variable

Lucent Technologies Inc Corporate Headquarters · NSN 5985-01-173-0973 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-173-0973 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-173-0973. Primary manufacturer part number: 45C.
Features
  • Attenuator,variable — FSC 5985
  • Overall Attenuation Range in Decibels: +0.0 TO 40.0
  • Attenuation Per Step in Decibels: 2.0
  • Terminal Type and Quantity: 2 CONNECTOR, RECEPTACLE
  • Body Style: IRREGULAR
  • Step Position Quantity: 20
  • Impedance Rating in Ohms: 75.0 INPUT-OUTPUT
  • Attenuation Variation Method: STEPPED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-173-0973, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-173-0973
Primary Part Number45C
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Overall Attenuation Range in Decibels+0.0 TO 40.0
Attenuation Per Step in Decibels2.0
Terminal Type and Quantity2 CONNECTOR, RECEPTACLE
Body StyleIRREGULAR
Step Position Quantity20
Impedance Rating in Ohms75.0 INPUT-OUTPUT
Attenuation Variation MethodSTEPPED
Frequency Range0.100 HERTZ MINIMUM AND 100.300 MEGAHERTZ MAXIMUM
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-068-2699J1816 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Bellofram Corporation
5999-00-220-9775 INTERCHANGEABLE
Clip,electrical
6625-00-881-4607TE589 INTERCHANGEABLE
Voltmeter
Mission Systems Davenport Inc.
4930-00-998-3555 INTERCHANGEABLE
Nozzle,fuel and Oil Servicing
7920-01-624-131445C INTERCHANGEABLE
Brush,window
Tucker Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
45C American Telephone and Telegraph Co (USA)
45C PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
45C Lucent Technologies Inc Dba Federal Marketing Group (USA)
45CATTENUAT0R American Telephone and Telegraph Co (USA)
Related Parts
6685-00-068-2699INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
J1816
5999-00-220-9775INTERCHANGEABLE
CLIP,ELECTRICAL
6625-00-881-4607INTERCHANGEABLE
VOLTMETER
TE589
4930-00-998-3555INTERCHANGEABLE
NOZZLE,FUEL AND OIL SERVICING
7920-01-624-1314INTERCHANGEABLE
BRUSH,WINDOW
45C

Frequently Asked Questions

What is NSN 5985-01-173-0973?

NSN 5985-01-173-0973 is a Attenuator,variable, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-173-0973?

NSN 5985-01-173-0973 has 4 cross-referenced part numbers: 45C (American Telephone and Telegraph Co), 45C (Lucent Technologies Inc Corporate Headquarters), 45C (Lucent Technologies Inc Dba Federal Marketing Group), 45CATTENUAT0R (American Telephone and Telegraph Co).

What NSN replaces 5985-01-173-0973?

There are 5 known substitutes for 5985-01-173-0973: 6685-00-068-2699, 5999-00-220-9775, 6625-00-881-4607 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45C?

Key specifications for 45C: Overall Height: 1.500 INCHES NOMINAL IN; Overall Width: 2.337 INCHES NOMINAL IN; Overall Length: 3.490 INCHES NOMINAL IN; Overall Attenuation Range in Decibels: +0.0 TO 40.0. 12 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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