PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

247AS-C2558-001Attenuator,fixed

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 5985-01-027-8271 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-027-8271 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-027-8271. Primary manufacturer part number: 247AS-C2558-001.
Features
  • Attenuator,fixed — FSC 5985
  • Body Style: RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACESRECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES
  • Frequency Range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
  • Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ+12.4 TO 18.0 GIGAHERTZ
  • Output Impedance Rating in Ohms: 50.050.0
  • Power Rating: 5.0 WATTS AVERAGE AND 5.0 WATTS AVERAGE AND 200.0 WATTS PEAK200.0 WATTS PEAK
  • Coaxial Connector Series Designation: N AND N AND SCSC
  • Attenuation Accuracy in Decibels: -0.30 TO 0.30-0.30 TO 0.30
Applications
  • Applications requiring Steel Corrosion Resisting Terminal construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-027-8271, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5985-01-027-8271
Primary Part Number247AS-C2558-001
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Body StyleRECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACESRECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES
Frequency Range0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ+12.4 TO 18.0 GIGAHERTZ
Output Impedance Rating in Ohms50.050.0
Power Rating5.0 WATTS AVERAGE AND 5.0 WATTS AVERAGE AND 200.0 WATTS PEAK200.0 WATTS PEAK
Coaxial Connector Series DesignationN AND N AND SCSC
Attenuation Accuracy in Decibels-0.30 TO 0.30-0.30 TO 0.30
Rf Signal Attenuation in Decibels6.06.0
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Terminal Type and Quantity2 CONNECTOR2 CONNECTOR
Input Impedance Rating in Ohms50.050.0
Voltage Standing Wave Ratio1.15 AND 1.15 AND 1.20 AND 1.20 AND 1.25 AND 1.25 AND 1.401.40
MaterialSTEEL CORROSION RESISTING TERMINAL
Mounting MethodCONNECTORCONNECTOR
Operating Temp Range+0.0 TO 85.0 CELSIUS+0.0 TO 85.0 CELSIUS DEGC
Application DesignTRANSMISSION LINETRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-012-982309336000 INTERCHANGEABLE
Contact,electrical
Hubbell Industrial Controls, Inc
5935-00-204-5121 INTERCHANGEABLE
Connector,receptacle,electrical
5310-00-245-8825MS16228-4C INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5950-00-542-1326 INTERCHANGEABLE
Coil,radio Frequency
2990-01-031-7251190-9336 INTERCHANGEABLE
Muffler,exhaust
Stemco Inc Sub of Coltec Industries Inc
5110-01-131-7095PL-46C INTERCHANGEABLE
Pliers,diagonal Cutting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
4730-01-146-59007Z588-9336 B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
4210-01-167-54309336 INTERCHANGEABLE
Dry Chemical,fire Extinguisher
Tyco Fire Products Lp
5307-01-194-9315N66641 INTERCHANGEABLE
Stud,plain
Leslie Controls, Inc. Dba Leslie Controls Inc
5998-01-247-0454121-361 INTERCHANGEABLE
Circuit Card Assembly
Tricor Systems Inc
Cross-Reference Index
Part NumberManufacturer
247AS-C2558-001 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
12136-1 Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA)
9336 Spectrum Control Inc Div Weinschel (USA)
Related Parts
5999-00-012-9823INTERCHANGEABLE
CONTACT,ELECTRICAL
09336000
5935-00-204-5121INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5310-00-245-8825INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS16228-4C
5950-00-542-1326INTERCHANGEABLE
COIL,RADIO FREQUENCY
2990-01-031-7251INTERCHANGEABLE
MUFFLER,EXHAUST
190-9336
5110-01-131-7095INTERCHANGEABLE
PLIERS,DIAGONAL CUTTING
PL-46C
4730-01-146-5900INTERCHANGEABLE
CLAMP,HOSE
7Z588-9336 B
4210-01-167-5430INTERCHANGEABLE
DRY CHEMICAL,FIRE EXTINGUISHER
9336
5307-01-194-9315INTERCHANGEABLE
STUD,PLAIN
N66641
5998-01-247-0454INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
121-361
6810-01-434-6526INTERCHANGEABLE
SULFURIC ACID SOLUTION
9336
5110-01-434-9459INTERCHANGEABLE
PLIERS,DIAGONAL CUTTING

Frequently Asked Questions

What is NSN 5985-01-027-8271?

NSN 5985-01-027-8271 is a Attenuator,fixed, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-027-8271?

NSN 5985-01-027-8271 has 3 cross-referenced part numbers: 247AS-C2558-001 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 12136-1 (Alliant Techsystems Operations Llc Div Defense Electronic Systems), 9336 (Spectrum Control Inc Div Weinschel).

What NSN replaces 5985-01-027-8271?

There are 12 known substitutes for 5985-01-027-8271: 5999-00-012-9823, 5935-00-204-5121, 5310-00-245-8825 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 247AS-C2558-001?

Key specifications for 247AS-C2558-001: Body Style: RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACESRECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES; Frequency Range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM; Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ+12.4 TO 18.0 GIGAHERTZ; Output Impedance Rating in Ohms: 50.050.0. 19 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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