PartsTable TECHNICAL DATA SHEET
NSN 5985-00-644-9008Government record, cited

Attenuator, Variable5985-00-644-9008

NSN 5985-00-644-9008 · NIIN 006449008 · Part number L500
Yosemite Investment Inc Dba North American Capacitor Co · FSC 5985 — Antennas, Waveguides, and Related Equipment · FSG 59 — Electrical and Electronic Equipment Components · CAGE 37942
Government record, cited
NSN 5985-00-644-9008 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-644-9008. Manufacturer of record part number: L500.
Also searched as  5985-00-644-9008 · 5985006449008 · NIIN 006449008 · 00-644-9008 · FSC 5985 Antennas, Waveguides, and Related Equipment · CAGE 37942 · L500 · C545-2407
Nearby stock numbers  ·
Features
  • Attenuator,variable — FSC 5985
  • Shaft Type: ROUND
  • Bushing Length: 0.375 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 500.0 INPUT
  • Body Diameter: 1.625 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 1 THREADED BUSHING
  • Frequency Range: 0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM
  • Shaft Diameter: 0.250 INCHES NOMINAL IN
Identification
  • NSN: 5985-00-644-9008
  • NIIN: 006449008
  • FSC: 5985 — Antennas, Waveguides, and Related Equipment
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: L500
  • Manufacturer: Yosemite Investment Inc Dba North American Capacitor Co
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-644-9008, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Yosemite Investment Inc Dba North American Capacitor Co. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-644-9008
Primary Part NumberL500
Item NameAttenuator,variable
FSC / FSG5985 / 59 — Antennas, Waveguides, and Related Equipment
ManufacturerYosemite Investment Inc Dba North American Capacitor Co
StatusACTIVE
Shaft TypeROUND
Bushing Length0.375 INCHES NOMINAL IN
Impedance Rating in Ohms500.0 INPUT
Body Diameter1.625 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 THREADED BUSHING
Frequency Range0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM
Shaft Diameter0.250 INCHES NOMINAL IN
Body StyleCYLINDRICAL W/SIDE TERMINALS
Adjustment Device Type and Quantity1 SHAFT
Overall Attenuation Range in Decibels+0.0 TO 36.0
Mounting Facility Screw Thread Series DesignatorUNEF
Overall Attenuation Accuracy in Decibels-1.80 TO 1.80
Attenuation Variation MethodCONTINUOUS
Schematic Diagram DesignatorBALANCED "H"
Mounting Thread Quantity32 PER INCH
Shaft Length2.406 INCHES NOMINAL IN
Body Length1.125 INCHES NOMINAL IN
Mounting Facility Nominal Screw Thread Diameter0.375 INCHES IN
Application DesignAUDIO
Terminal Type and Quantity4 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8010-00-823-7962 POSSIBLE MATCH
PAINT,LATEX
Possible match (shared part number)
5836-01-064-4954 POSSIBLE MATCH
TAPE,VIDEO RECORDING
Possible match (shared part number)
5836-01-080-3528188-L500-6A POSSIBLE MATCH
TAPE,VIDEO RECORDING
Possible match (shared part number)Quantegy Recording Solutions Llc
5110-01-518-3391L500 POSSIBLE MATCH
KNIFE,CRAFTSMAN'S
Possible match (shared part number)Westward Corp
5340-01-612-1315C545-2407 POSSIBLE MATCH
HINGE,BUTT
Possible match (shared part number)Essex Electro Engineers Inc
4140-01-659-3450L500 POSSIBLE MATCH
FAN,VENTILATING
Possible match (shared part number)Broan-Nutone Llc Dba Broan
5310-01-661-8115L500 POSSIBLE MATCH
NUT,SLEEVE
Possible match (shared part number)American Defense Manufacturing Llc
6650-01-695-1542L-500 POSSIBLE MATCH
MOUNT,TELESCOPE
Possible match (shared part number)Planewave Instruments Inc
Cross-Reference Index
Part NumberManufacturer
L500 PRIMARY Yosemite Investment Inc Dba North American Capacitor Co (USA)
C545-2407 Brighton Cromwell Llc (USA)
Related Parts
8010-00-823-7962POSSIBLE MATCH
PAINT,LATEX
5836-01-064-4954POSSIBLE MATCH
TAPE,VIDEO RECORDING
5836-01-080-3528POSSIBLE MATCH
TAPE,VIDEO RECORDING
188-L500-6A
5110-01-518-3391POSSIBLE MATCH
KNIFE,CRAFTSMAN'S
L500
5340-01-612-1315POSSIBLE MATCH
HINGE,BUTT
C545-2407
4140-01-659-3450POSSIBLE MATCH
FAN,VENTILATING
L500
5310-01-661-8115POSSIBLE MATCH
NUT,SLEEVE
L500
6650-01-695-1542POSSIBLE MATCH
MOUNT,TELESCOPE
L-500

Frequently Asked Questions

What is NSN 5985-00-644-9008?

NSN 5985-00-644-9008 is a Attenuator,variable, manufactured by Yosemite Investment Inc Dba North American Capacitor Co, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.

What part numbers are listed for NSN 5985-00-644-9008?

NSN 5985-00-644-9008 has 2 manufacturer part numbers on file: L500 (Yosemite Investment Inc Dba North American Capacitor Co), C545-2407 (Brighton Cromwell Llc).

What NSN replaces 5985-00-644-9008?

8 possible matches (shared part number, not a government interchangeability claim): 8010-00-823-7962, 5836-01-064-4954, 5836-01-080-3528. Verify interchangeability with system specifications before substitution.

What are the specifications of L500?

Key specifications for L500: Shaft Type: ROUND; Bushing Length: 0.375 INCHES NOMINAL IN; Impedance Rating in Ohms: 500.0 INPUT; Body Diameter: 1.625 INCHES NOMINAL IN. 20 specifications are documented in the U.S. Government catalog.

Is NSN 5985-00-644-9008 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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