NSN 2940-00-491-3285 · NIIN 004913285 · Part number BI374S1
Wisconsin Motors, Llc · FSC 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · FSG 29 — Engine Accessories · CAGE 66289
Government record, cited
NSN 2940-00-491-3285 — this item is cataloged by the U.S. Government under National Stock Number 2940-00-491-3285. Manufacturer of record part number: BI374S1.
Also searched as2940-00-491-3285 ·
2940004913285 ·
NIIN 004913285 ·
00-491-3285 ·
FSC 2940 Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · CAGE 66289 · BI374S1 · B1374S1
General Characteristics Item Description: CONSISTS OF 1 ALUMINUM BRACKET 5.850 IN. O/A LG,3.700 IN. O/A WIDTH,ONE END OF BRACKET HAS FLANGE 3.020 IN. DIA,OTHER END HAS VARIOUS LUG HOLES,ALSO INCLUDES IS 1 STUD 7-3/8 IN. O/ALG WITH 1/4-28 UNF THD ONE AND 1/4-20 UNF THD OTHER END,1 PLASTIC WING NUT 1/4-20UNC,1 STEEL PIPE PLUG 1/8-27 NPT IN
2 manufacturer part numbers on file
Manufacturer of record: Wisconsin Motors, Llc
Identification
NSN: 2940-00-491-3285
NIIN: 004913285
FSC: 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: BI374S1
Manufacturer: Wisconsin Motors, Llc
General Description
The Bracket Assembly,air Cleaner, cataloged under National Stock Number 2940-00-491-3285, 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 Wisconsin Motors, Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2940-00-491-3285
Primary Part Number
BI374S1
Item Name
Bracket Assembly,air Cleaner
FSC / FSG
2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
Manufacturer
Wisconsin Motors, Llc
Status
ACTIVE
General Characteristics Item Description
CONSISTS OF 1 ALUMINUM BRACKET 5.850 IN. O/A LG,3.700 IN. O/A WIDTH,ONE END OF BRACKET HAS FLANGE 3.020 IN. DIA,OTHER END HAS VARIOUS LUG HOLES,ALSO INCLUDES IS 1 STUD 7-3/8 IN. O/ALG WITH 1/4-28 UNF THD ONE AND 1/4-20 UNF THD OTHER END,1 PLASTIC WING NUT 1/4-20UNC,1 STEEL PIPE PLUG 1/8-27 NPT IN
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.
2940-00-238-5551
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-238-5551
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-238-5551
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-354-6471
STRAINER OIL
2940-00-356-0884
FILTER ELEMENT,FLUID
2940-00-445-0685
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-445-0685
FILTER ELEMENT,INTAKE AIR CLEANE
2940-00-445-0685
FILTER ELEMENT,INTAKE AIR CLEANE
Frequently Asked Questions
What is NSN 2940-00-491-3285?
NSN 2940-00-491-3285 is a Bracket Assembly,air Cleaner, manufactured by Wisconsin Motors, Llc, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
What part numbers are listed for NSN 2940-00-491-3285?
NSN 2940-00-491-3285 has 2 manufacturer part numbers on file: B1374S1 (Wisconsin Motors, Llc), BI374S1 (Wisconsin Motors, Llc).
What are the specifications of BI374S1?
Key specifications for BI374S1: General Characteristics Item Description: CONSISTS OF 1 ALUMINUM BRACKET 5.850 IN. O/A LG,3.700 IN. O/A WIDTH,ONE END OF BRACKET HAS FLANGE 3.020 IN. DIA,OTHER END HAS VARIOUS LUG HOLES,ALSO INCLUDES IS 1 STUD 7-3/8 IN. O/ALG WITH 1/4-28 UNF THD ONE AND 1/4-20 UNF THD OTHER END,1 PLASTIC WING NUT 1/4-20UNC,1 STEEL PIPE PLUG 1/8-27 NPT IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2940-00-491-3285 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.