NSN 2940-00-135-6531 · NIIN 001356531 · Part number 990121
Am General Llc · FSC 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · FSG 29 — Engine Accessories · CAGE 34623
Government record, cited
NSN 2940-00-135-6531 — this item is cataloged by the U.S. Government under National Stock Number 2940-00-135-6531. Manufacturer of record part number: 990121.
Also searched as2940-00-135-6531 ·
2940001356531 ·
NIIN 001356531 ·
00-135-6531 ·
FSC 2940 Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · CAGE 34623 · 990121 · P11-3989 · 11662692
Nearby stock numbers← 2940-00-135-6530
·
2940-00-135-6532 Air Cleaner, Intake →
Features
Filter Element,intake Air Cleane — FSC 2940
Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE
FSC: 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 990121
Manufacturer: Am General Llc
General Description
The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-00-135-6531, 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 Am General Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 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
2940-00-135-6531
Primary Part Number
990121
Item Name
Filter Element,intake Air Cleane
FSC / FSG
2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
No interchangeability data on file.
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 2940-00-135-6531?
NSN 2940-00-135-6531 is a Filter Element,intake Air Cleane, manufactured by Am General Llc, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
What part numbers are listed for NSN 2940-00-135-6531?
NSN 2940-00-135-6531 has 3 manufacturer part numbers on file: P11-3989 (Donaldson Company, Inc.), 990121 (Am General Llc), 11662692 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 990121?
Key specifications for 990121: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 3.250 INCHES NOMINAL IN; FSC Application Data: FUEL SYSTEM,GASOLINE ENGINE,NONAIRCRAFT; Body Overall Length: 6.500 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 2940-00-135-6531 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.