PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6521-2Attenuator,fixed

Spectrum Control Inc Div Weinschel · NSN 5985-01-538-6253 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-538-6253 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-538-6253. Primary manufacturer part number: 6521-2.
Features
  • Attenuator,fixed — FSC 5985
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Connection Type Per Function: MALE INPUT AND FEMALE OUTPUT
  • Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 18.0 GIGAHERTZ
  • Mounting Method: CONNECTOR
  • Terminal Type and Quantity: 2 CONNECTOR
  • Coaxial Connector Series Designation: N
  • Output Impedance Rating in Ohms: 50.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-538-6253, 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 Spectrum Control Inc Div Weinschel. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-538-6253
Primary Part Number6521-2
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerSpectrum Control Inc Div Weinschel
StatusACTIVE
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Connection Type Per FunctionMALE INPUT AND FEMALE OUTPUT
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 18.0 GIGAHERTZ
Mounting MethodCONNECTOR
Terminal Type and Quantity2 CONNECTOR
Coaxial Connector Series DesignationN
Output Impedance Rating in Ohms50.0
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Rf Signal Attenuation in Decibels2.0
Input Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio1.20 AND 1.30
Power Rating25.0 WATTS AVERAGE
Overall Diameter1.650 INCHES MAXIMUM IN
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-100-363965212 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
2990-00-678-9816157E11-2170 INTERCHANGEABLE
Pipe,exhaust
Kurz & Root Generator Company, Llc
5935-00-762-0312 INTERCHANGEABLE
Jack,tip
6505-01-238-0884 INTERCHANGEABLE
Alumina,magnesia,and Simethicone
4730-01-269-6595AE99901U INTERCHANGEABLE
Coupling Assembly,quick Disconne
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
1730-01-354-343665212 INTERCHANGEABLE
Plunger,jack
Malabar
5905-01-384-779265212 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5985-01-524-57726521 INTERCHANGEABLE
Antenna Subassembly
Spectrum Control Inc Div Weinschel
5985-01-538-62446521-1 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control Inc Div Weinschel
5985-01-538-62616521-3 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control Inc Div Weinschel
Cross-Reference Index
Part NumberManufacturer
7607083 Naval Sea Systems Command (USA)
6521-2 PRIMARY Spectrum Control Inc Div Weinschel (USA)
Related Parts
3110-00-100-3639INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
65212
2990-00-678-9816INTERCHANGEABLE
PIPE,EXHAUST
157E11-2170
5935-00-762-0312INTERCHANGEABLE
JACK,TIP
6505-01-238-0884INTERCHANGEABLE
ALUMINA,MAGNESIA,AND SIMETHICONE
4730-01-269-6595INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
AE99901U
1730-01-354-3436INTERCHANGEABLE
PLUNGER,JACK
65212
5905-01-384-7792INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
65212
5985-01-524-5772INTERCHANGEABLE
ANTENNA SUBASSEMBLY
6521
5985-01-538-6244INTERCHANGEABLE
ATTENUATOR,FIXED
6521-1
5985-01-538-6261INTERCHANGEABLE
ATTENUATOR,FIXED
6521-3

Frequently Asked Questions

What is NSN 5985-01-538-6253?

NSN 5985-01-538-6253 is a Attenuator,fixed, manufactured by Spectrum Control Inc Div Weinschel, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-538-6253?

NSN 5985-01-538-6253 has 2 cross-referenced part numbers: 7607083 (Naval Sea Systems Command), 6521-2 (Spectrum Control Inc Div Weinschel).

What NSN replaces 5985-01-538-6253?

There are 10 known substitutes for 5985-01-538-6253: 3110-00-100-3639, 2990-00-678-9816, 5935-00-762-0312 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6521-2?

Key specifications for 6521-2: Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC; Connection Type Per Function: MALE INPUT AND FEMALE OUTPUT; Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 18.0 GIGAHERTZ; Mounting Method: CONNECTOR. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com