PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20249Filter,air

Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc. · NSN 4330-01-231-0401 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-01-231-0401 — this item is cataloged by the U.S. Government under National Stock Number 4330-01-231-0401. Primary manufacturer part number: 20249.
Features
  • Filter,air — FSC 4330
  • 4 verified cross-references
  • Primary manufacturer: Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc.
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,air, cataloged under National Stock Number 4330-01-231-0401, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc.. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFilter,air
FSC / FSG4330 — No Item Name Available (FSG 43)
ManufacturersCrash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc. (CAGE 5U658); Baldor Electric Company Dba Baldor Generator Div Baldor Generators (CAGE 51879); Oshkosh Corp (CAGE 45152); Oshkosh Defense Llc (CAGE 75Q65)
Technical Specifications
ParameterValue
NSN4330-01-231-0401
Primary Part Number20249
Item NameFilter,air
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerCrash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5999-00-035-8725 INTERCHANGEABLE
Contact,electrical
5950-00-730-407557A14C70 INTERCHANGEABLE
Transformer,audio Frequency
Naval Air Warfare Center Aircraft Div
5905-00-813-024010XM500 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ward Leonard Ct Llc
5905-00-899-504320249 INTERCHANGEABLE
Resistor,variable,wire Wound,non
General Dynamics Motion Control Llc
4820-01-022-859320249 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5310-01-312-712536020 INTERCHANGEABLE
Nut,sheet Spring
Alliance Laundry Systems Llc
6515-01-590-85949086 INTERCHANGEABLE
Oximeter,pulse
Masimo Corporation
Cross-Reference Index
Part NumberManufacturer
20249 Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc. (USA)
500-5496-57 Baldor Electric Company Dba Baldor Generator Div Baldor Generators (USA)
2BG636 Oshkosh Corp (USA)
2BG636 Oshkosh Defense Llc (USA)
Related Parts
5999-00-035-8725INTERCHANGEABLE
CONTACT,ELECTRICAL
5950-00-730-4075INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
57A14C70
5905-00-813-0240INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
10XM500
5905-00-899-5043INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
20249
4820-01-022-8593INTERCHANGEABLE
VALVE,SAFETY RELIEF
20249
5310-01-312-7125INTERCHANGEABLE
NUT,SHEET SPRING
36020
6515-01-590-8594INTERCHANGEABLE
OXIMETER,PULSE
9086

Frequently Asked Questions

What is NSN 4330-01-231-0401?

NSN 4330-01-231-0401 is a Filter,air, manufactured by Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc., classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-01-231-0401?

NSN 4330-01-231-0401 has 4 cross-referenced part numbers: 20249 (Crash Rescue Equipment Service Incorporated Div Crash Rescue Equipment Service, Inc.), 500-5496-57 (Baldor Electric Company Dba Baldor Generator Div Baldor Generators), 2BG636 (Oshkosh Corp), 2BG636 (Oshkosh Defense Llc).

What NSN replaces 4330-01-231-0401?

There are 7 known substitutes for 4330-01-231-0401: 5999-00-035-8725, 5950-00-730-4075, 5905-00-813-0240 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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