PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B173CFilter Element,air Conditioning

Farr Co · NSN 4130-00-595-0139 · FSC 4130 · No Item Name Available
Verified by PartsTable
NSN 4130-00-595-0139 — this item is cataloged by the U.S. Government under National Stock Number 4130-00-595-0139. Primary manufacturer part number: B173C.
Features
  • Filter Element,air Conditioning — FSC 4130
  • Material: STEEL FRAME
  • Nondefinitive Spec/std Data: 1 CLASS AND 14AF SIZE
  • Style Designator: RECTANGULAR (INCL SQUARE)
  • Material: STEEL FILTERING MEDIUM
  • Maximum Air Flow Rate: 690.0 CUBIC FEET PER MINUTE
  • Body Thickness: 2.000 INCHES MINIMUM AND 2.124 INCHES MAXIMUM IN
  • Body Overall Length: 24.438 INCHES MINIMUM AND 24.562 INCHES MAXIMUM IN
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Steel Frame construction
General Description

The Filter Element,air Conditioning, cataloged under National Stock Number 4130-00-595-0139, is classified within Federal Supply Class 4130 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Farr Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4130-00-595-0139
Primary Part NumberB173C
Item NameFilter Element,air Conditioning
FSC / FSG4130 / 41 — No Item Name Available
ManufacturerFarr Co
StatusCANCELLED
MaterialSTEEL FRAME
Nondefinitive Spec/std Data1 CLASS AND 14AF SIZE
Style DesignatorRECTANGULAR (INCL SQUARE)
MaterialSTEEL FILTERING MEDIUM
Maximum Air Flow Rate690.0 CUBIC FEET PER MINUTE
Body Thickness2.000 INCHES MINIMUM AND 2.124 INCHES MAXIMUM IN
Body Overall Length24.438 INCHES MINIMUM AND 24.562 INCHES MAXIMUM IN
Design TypeREUSABLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4130-00-540-1035 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-542-2263 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-556-5523 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-595-0133 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-595-0134 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-595-0135 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-595-0136 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-595-0138 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-640-0237 INTERCHANGEABLE
Filter Element,air Conditioning
4130-00-640-0238 INTERCHANGEABLE
Filter Element,air Conditioning
Cross-Reference Index
Part NumberManufacturer
B173C Farr Co (USA)
44W-STEEL SZ14AF Farr Co (USA)
14AFSTL Zf Industrieantriebe Witten Gmbh (DEU)
W-230 AIRSAN STEEL SZ14AF Airsan Corporation Dba Airsan Corp (USA)
MIL-PRF-16552 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CL1 SZ14AF Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-16552 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
P-SW-STEEL SZ14AF Falls Filtration Technologies, Inc. (USA)
Related Parts
4130-00-540-1035INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-542-2263INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-556-5523INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-595-0133INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-595-0134INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-595-0135INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-595-0136INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-595-0138INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-640-0237INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-640-0238INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
4130-00-640-0239INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
14AFCL2
4130-00-640-0240INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING

Frequently Asked Questions

What is NSN 4130-00-595-0139?

NSN 4130-00-595-0139 is a Filter Element,air Conditioning, manufactured by Farr Co, classified under FSC 4130 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4130-00-595-0139?

NSN 4130-00-595-0139 has 8 cross-referenced part numbers: B173C (Farr Co), 44W-STEEL SZ14AF (Farr Co), 14AFSTL (Zf Industrieantriebe Witten Gmbh), W-230 AIRSAN STEEL SZ14AF (Airsan Corporation Dba Airsan Corp), MIL-PRF-16552 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 4130-00-595-0139?

There are 12 known substitutes for 4130-00-595-0139: 4130-00-540-1035, 4130-00-542-2263, 4130-00-556-5523 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B173C?

Key specifications for B173C: Material: STEEL FRAME; Nondefinitive Spec/std Data: 1 CLASS AND 14AF SIZE; Style Designator: RECTANGULAR (INCL SQUARE); Material: STEEL FILTERING MEDIUM. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4130-00-595-0139 still in active supply?

NSN 4130-00-595-0139 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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