PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SPRW4A2521S16Resistor,variable,nonwire Wound,

Precision Electronics Corporation · NSN 5905-01-323-6709 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-01-323-6709 — this item is cataloged by the U.S. Government under National Stock Number 5905-01-323-6709. Primary manufacturer part number: SPRW4A2521S16.
Features
  • Resistor,variable,nonwire Wound, — FSC 5905
  • Shaft Length: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
  • Shaft Style: ROUND, SLOTTED
  • Section Quantity: 1
  • Terminal Length: 0.562 INCHES MAXIMUM IN
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 70.0 SINGLE SECTION
  • Power Dissipation Rating Per Section in Watts: 0.5 FREE AIR SINGLE SECTION
  • Body Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-323-6709, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Precision Electronics Corporation. Government technical data includes 29 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-01-323-6709
Primary Part NumberSPRW4A2521S16
Item NameResistor,variable,nonwire Wound,
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerPrecision Electronics Corporation
StatusACTIVE
Shaft Length0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Shaft StyleROUND, SLOTTED
Section Quantity1
Terminal Length0.562 INCHES MAXIMUM IN
Ambient Temp in Deg Celsius Per Section at Full Rated Power70.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts0.5 FREE AIR SINGLE SECTION
Body Diameter0.500 INCHES NOMINAL IN
Body StyleCYLINDRICAL BUSHING MOUNTED
Rotary Actuator Travel in Angular Deg292.0 MINIMUM AND 298.0 MAXIMUM
Center to Center Distance Between Center Terminal and Outside Terminal0.100 INCHES NOMINAL IN
Screw Thread Quantity Per Inch32.0
Electrical Resistance Per Section2.5 KILOHMS SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power120.0 SINGLE SECTION
Actuator Travel Control FeatureSTOPS
Fragility FactorMODERATELY RUGGED
Center to Center Distance Between Terminals0.200 INCHES NOMINAL IN
Device Design TypeNONTURN AT 10:30 OCLOCKUNABLE TO DECODE
Device Design TypeNONTURN AT 4:30 OCLOCKUNABLE TO DECODE
Screw Thread Series DesignatorUNEF
Mounting MethodSTANDARD BUSHING AND TERMINAL
Terminal Type and Quantity3 PIN
Screw Thread Diameter0.250 INCHES NOMINAL IN
Nonturn Device Radius0.245 INCHES NOMINAL IN
Features ProvidedPANEL SEAL AND SHAFT SEAL
Actuator TypeSINGLE SHAFT
Terminal LocationREAR END
Maximum Running Torque6.00 INCH-OUNCES IN
Maximum Starting Torque6.00 INCH-OUNCES IN
Mounting Bushing Length0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
8345-01-509-3478225359 INTERCHANGEABLE
Flag,national
Donovan Marine, Inc. Dba Donovan Marine Inc
Cross-Reference Index
Part NumberManufacturer
225359 Raytheon Company (USA)
SPRW4A2521S16 PRIMARY Precision Electronics Corporation (CAN)
Related Parts
8345-01-509-3478INTERCHANGEABLE
FLAG,NATIONAL
225359

Frequently Asked Questions

What is NSN 5905-01-323-6709?

NSN 5905-01-323-6709 is a Resistor,variable,nonwire Wound,, manufactured by Precision Electronics Corporation, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-01-323-6709?

NSN 5905-01-323-6709 has 2 cross-referenced part numbers: 225359 (Raytheon Company), SPRW4A2521S16 (Precision Electronics Corporation).

What NSN replaces 5905-01-323-6709?

There is 1 known substitute for 5905-01-323-6709: 8345-01-509-3478. Verify interchangeability with system specifications before substitution.

What are the specifications of SPRW4A2521S16?

Key specifications for SPRW4A2521S16: Shaft Length: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Shaft Style: ROUND, SLOTTED; Section Quantity: 1; Terminal Length: 0.562 INCHES MAXIMUM IN. 30 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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