NSN 2940-00-374-2881 · NIIN 003742881 · Part number B343B
Gast Mfg Corp · FSC 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · FSG 29 — Engine Accessories · CAGE 24123
Government record, cited
NSN 2940-00-374-2881 — this item is cataloged by the U.S. Government under National Stock Number 2940-00-374-2881. Manufacturer of record part number: B343B.
Also searched as2940-00-374-2881 ·
2940003742881 ·
NIIN 003742881 ·
00-374-2881 ·
FSC 2940 Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft · CAGE 24123 · B343B · B343B1-4 · C5110800-1 · C5110800
FSC: 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: B343B
Manufacturer: Gast Mfg Corp
General Description
The Head,fluid Filter, cataloged under National Stock Number 2940-00-374-2881, 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 Gast Mfg Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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
2940-00-374-2881
Primary Part Number
B343B
Item Name
Head,fluid Filter
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.
2940-00-238-5551
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 2940-00-374-2881?
NSN 2940-00-374-2881 is a Head,fluid Filter, manufactured by Gast Mfg Corp, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
What part numbers are listed for NSN 2940-00-374-2881?
NSN 2940-00-374-2881 has 2 manufacturer part numbers on file: B343B1-4 (Gast Mfg Corp), B343B (Gast Mfg Corp).
What are the specifications of B343B?
Key specifications for B343B: Overall Height: 2.875 INCHES NOMINAL IN; Absolute Filtration Rating in Microns: 50.0; Usage Design: DIRECT INTEGRAL CAVITY MOUNTING; Filtering Material Design: LOOSE PACKED. 12 specifications are documented in the U.S. Government catalog.
Is NSN 2940-00-374-2881 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.