NSN 2940-01-042-5171 · NIIN 010425171 · Part number R250B9
Maradyne Corporation · FSC 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · FSG 29 — Engine Accessories · CAGE 0DBY7
Government record, cited
NSN 2940-01-042-5171 — this item is cataloged by the U.S. Government under National Stock Number 2940-01-042-5171. Manufacturer of record part number: R250B9.
Also searched as2940-01-042-5171 ·
2940010425171 ·
NIIN 010425171 ·
01-042-5171 ·
FSC 2940 Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · CAGE 0DBY7 · R250B9 · 250B9 · 2-233
Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE
Body Diameter: 4.383 INCHES MINIMUM AND 4.403 INCHES MAXIMUM IN
Body Overall Length: 1.535 INCHES MINIMUM AND 1.655 INCHES MAXIMUM IN
Design Type: NONREUSABLE
Style Designator: CYLINDRICAL W/CLOSED ENDS
Body Inside Diameter: 2.992 INCHES MINIMUM AND 3.012 INCHES MAXIMUM IN
Material: PAPER FILTERING MEDIUM
Identification
NSN: 2940-01-042-5171
NIIN: 010425171
FSC: 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: R250B9
Manufacturer: Maradyne Corporation
General Description
The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-01-042-5171, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Maradyne Corporation. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2940-01-042-5171
Primary Part Number
R250B9
Item Name
Filter Element,intake Air Cleane
FSC / FSG
2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
Other items in FSC 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2940-00-001-1259
2940-00-001-1259 · Item name not on file
2940-00-001-3513
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-001-3513
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-001-3513
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-001-3513
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-001-3513
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-001-3988
2940-00-001-3988 · Item name not on file
2940-00-001-3991
2940-00-001-3991 · Item name not on file
Frequently Asked Questions
What is NSN 2940-01-042-5171?
NSN 2940-01-042-5171 is a Filter Element,intake Air Cleane, manufactured by Maradyne Corporation, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
What part numbers are listed for NSN 2940-01-042-5171?
NSN 2940-01-042-5171 has 2 manufacturer part numbers on file: R250B9 (Maradyne Corporation), 2-233 (Clinton Engines Corp).
What are the specifications of R250B9?
Key specifications for R250B9: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 4.383 INCHES MINIMUM AND 4.403 INCHES MAXIMUM IN; Body Overall Length: 1.535 INCHES MINIMUM AND 1.655 INCHES MAXIMUM IN; Design Type: NONREUSABLE. 7 specifications are documented in the U.S. Government catalog.
Is NSN 2940-01-042-5171 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.