PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20475Filter Element,air Conditioning

Electro Impulse Laboratory Inc Dba Electro Impulse Inc · NSN 1660-01-521-0929 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-521-0929 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-521-0929. Primary manufacturer part number: 20475.
Features
  • Filter Element,air Conditioning — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter Element,air Conditioning, cataloged under National Stock Number 1660-01-521-0929, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Electro Impulse Laboratory Inc Dba Electro Impulse Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN1660-01-521-0929
Primary Part Number20475
Item NameFilter Element,air Conditioning
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerElectro Impulse Laboratory Inc Dba Electro Impulse Inc
StatusACTIVE
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.
5915-01-123-995420475 INTERCHANGEABLE
Filter,band Pass
Alpha Components Inc
5325-01-255-2605 INTERCHANGEABLE
Ring,retaining
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
20475 PRIMARY Electro Impulse Laboratory Inc Dba Electro Impulse 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
5915-01-123-9954INTERCHANGEABLE
FILTER,BAND PASS
20475
5325-01-255-2605INTERCHANGEABLE
RING,RETAINING
6505-01-590-0228INTERCHANGEABLE
ANTICOAGULANT CITRATE DEXTROSE S
40800
4820-01-642-0029INTERCHANGEABLE
VALVE,BALL
20475

Frequently Asked Questions

What is NSN 1660-01-521-0929?

NSN 1660-01-521-0929 is a Filter Element,air Conditioning, manufactured by Electro Impulse Laboratory Inc Dba Electro Impulse Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-521-0929?

NSN 1660-01-521-0929 has 1 cross-referenced part number: 20475 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc).

What NSN replaces 1660-01-521-0929?

There are 10 known substitutes for 1660-01-521-0929: 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: End Item Identification: F-15 SUPPORT EQUIPMENT; Special Features: SWITCH,LOW PRESSURE,S8,(MADE FROM P/N 20PS094MB400K300K,CAGE 14859),T.0. 33D7-35-39-14 FIGURE 10, INDEX 38. 2 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