FSC: 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
FSG: 29 — Engine Accessories
General Description
The Cover,fluid Filter, cataloged under National Stock Number 2940-01-122-5161, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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
2940-01-122-5161
Item Name
Cover,fluid Filter
FSC / FSG
2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
Status
ACTIVE
Bolt Circle Hole Quantity
4
Outside Diameter
1.125 INCHES NOMINAL IN
Bolt Circle Diameter
2.203 INCHES NOMINAL IN
Fluid Filter Element Retainer
INCLUDED
Peripheral Shape Style
CIRCULAR
Material
STEEL COMP 304
Attachment Method
BOLTED
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2621-713-01
D/9Drawing number reference only
U.S. Government activity
2621-713-01 PIECE 165
3/2Design control — primary reference
U.S. Government activity
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 2940-01-122-5161?
NSN 2940-01-122-5161 is a Cover,fluid Filter, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
What are the specifications of 2940-01-122-5161?
Key specifications for 2940-01-122-5161: Bolt Circle Hole Quantity: 4; Outside Diameter: 1.125 INCHES NOMINAL IN; Bolt Circle Diameter: 2.203 INCHES NOMINAL IN; Fluid Filter Element Retainer: INCLUDED. 7 specifications are documented in the U.S. Government catalog.
Is NSN 2940-01-122-5161 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.