PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20475Filter,band Pass

Alpha Components Inc · NSN 5915-01-123-9954 · FSC 5915 · No Item Name Available
Verified by PartsTable
NSN 5915-01-123-9954 — this item is cataloged by the U.S. Government under National Stock Number 5915-01-123-9954. Primary manufacturer part number: 20475.
Features
  • Filter,band Pass — FSC 5915
  • Body Length: 3.980 INCHES NOMINAL IN
  • Operating Temp Range: +15.0 TO 40.0 CELSIUS DEGC
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 3.312 INCHES NOMINAL IN
  • Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Functional Terminal Type and Quantity: 1 PIN OUTPUT SECOND FUNCTION
  • Frequency Band Width Per Function: 9.50 KILOHERTZ BLANK AND 10.50 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
  • Reference Frequency Per Function: 10.0 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,band Pass, cataloged under National Stock Number 5915-01-123-9954, is classified within Federal Supply Class 5915 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Alpha Components Inc. Government technical data includes 21 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
NSN5915-01-123-9954
Primary Part Number20475
Item NameFilter,band Pass
FSC / FSG5915 / 59 — No Item Name Available
ManufacturerAlpha Components Inc
StatusACTIVE
Body Length3.980 INCHES NOMINAL IN
Operating Temp Range+15.0 TO 40.0 CELSIUS DEGC
Distance Between Centerlines of Mounting Facilities Parallel to Body Length3.312 INCHES NOMINAL IN
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Functional Terminal Type and Quantity1 PIN OUTPUT SECOND FUNCTION
Frequency Band Width Per Function9.50 KILOHERTZ BLANK AND 10.50 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Reference Frequency Per Function10.0 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Insertion Loss at Reference Frequency Per Function in Decibels13.0 BLANK LOCATION NOT OTHERWISE SPECIFIED
Inclosure TypeENCASED
Load Impedance Per Function1.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE
Source Impedance Rating Per Function1.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
Functional Terminal Type and Quantity1 PIN INPUT FIRST FUNCTION
Mounting Facility Type and Quantity2 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Body Height1.250 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES IN
Specified Frequencies of Discrimination Per Function9.10 KILOHERTZ BLANK AND 9.50 KILOHERTZ BLANK AND 10.50 KILOHERTZ BLANK AND 10.90 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Discrimination at Specified Frequencies Per Function in Decibels45.0 MINIMUM BLANK AND 3.0 MAXIMUM BLANK FIRST FUNCTION
Functional Terminal Type and Quantity2 PIN GROUND THIRD FUNCTION
Body Width2.000 INCHES NOMINAL IN
Body MaterialMETAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-129-667120475 INTERCHANGEABLE
Transformer,power
Astec America Inc.
4310-00-374-7013204-75 INTERCHANGEABLE
Ring Set,piston
Dresser Industries Inc Leroi Div
4720-00-421-143320475 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5940-00-707-4967MX1684AU INTERCHANGEABLE
Ferrule,metallic Shielded Cable,
Joint Electronics Type Designation System
5360-01-032-314620475 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6630-01-054-433140-703 INTERCHANGEABLE
Analyzer,gas
Burrell Scientific, Inc.
5325-01-255-2605 INTERCHANGEABLE
Ring,retaining
1660-01-521-092920475 INTERCHANGEABLE
Filter Element,air Conditioning
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
6505-01-590-022840800 INTERCHANGEABLE
Anticoagulant Citrate Dextrose S
Terumo Bct Inc Dba Caridianbct Inc
4820-01-642-002920475 INTERCHANGEABLE
Valve,ball
United States Plastic Corp
Cross-Reference Index
Part NumberManufacturer
0N266278 National Security Agency (USA)
20475 PRIMARY Alpha Components Inc (USA)
Related Parts
5950-00-129-6671INTERCHANGEABLE
TRANSFORMER,POWER
20475
4310-00-374-7013INTERCHANGEABLE
RING SET,PISTON
204-75
4720-00-421-1433INTERCHANGEABLE
HOSE,PREFORMED
20475
5940-00-707-4967INTERCHANGEABLE
FERRULE,METALLIC SHIELDED CABLE,
MX1684AU
5360-01-032-3146INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20475
6630-01-054-4331INTERCHANGEABLE
ANALYZER,GAS
40-703
5325-01-255-2605INTERCHANGEABLE
RING,RETAINING
1660-01-521-0929INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
20475
6505-01-590-0228INTERCHANGEABLE
ANTICOAGULANT CITRATE DEXTROSE S
40800
4820-01-642-0029INTERCHANGEABLE
VALVE,BALL
20475

Frequently Asked Questions

What is NSN 5915-01-123-9954?

NSN 5915-01-123-9954 is a Filter,band Pass, manufactured by Alpha Components Inc, classified under FSC 5915 (No Item Name Available). Status: active.

What are the part numbers for NSN 5915-01-123-9954?

NSN 5915-01-123-9954 has 2 cross-referenced part numbers: 0N266278 (National Security Agency), 20475 (Alpha Components Inc).

What NSN replaces 5915-01-123-9954?

There are 10 known substitutes for 5915-01-123-9954: 5950-00-129-6671, 4310-00-374-7013, 4720-00-421-1433 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20475?

Key specifications for 20475: Body Length: 3.980 INCHES NOMINAL IN; Operating Temp Range: +15.0 TO 40.0 CELSIUS DEGC; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 3.312 INCHES NOMINAL IN; Overall Height: 1.625 INCHES NOMINAL IN. 22 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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