PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B178Filter,fluid

Baldwin Filters · NSN 2940-01-671-0310 · FSC 2940 · No Item Name Available
Verified by PartsTable
NSN 2940-01-671-0310 — this item is cataloged by the U.S. Government under National Stock Number 2940-01-671-0310. Primary manufacturer part number: B178.
Features
  • Filter,fluid — FSC 2940
  • Style Designator: CYLINDRICAL W/ INTEGRAL OUTER CASING
  • Nominal Thread Size: 0.750 INCHES IN
  • Body Overall Length: 4.8437 INCHES NOMINAL IN
  • Features Provided: ANTIDRAIN BACK DEVICE AND BY-PASS VALVE
  • First Intake Thread Quantity Per Inch: 16
  • Media for Which Designed: FUEL/OIL, HYDROCARBON
  • Body Diameter: 2.9375 INCHES NOMINAL IN
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,fluid, cataloged under National Stock Number 2940-01-671-0310, is classified within Federal Supply Class 2940 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Baldwin Filters. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2940-01-671-0310
Primary Part NumberB178
Item NameFilter,fluid
FSC / FSG2940 / 29 — No Item Name Available
ManufacturerBaldwin Filters
StatusACTIVE
Style DesignatorCYLINDRICAL W/ INTEGRAL OUTER CASING
Nominal Thread Size0.750 INCHES IN
Body Overall Length4.8437 INCHES NOMINAL IN
Features ProvidedANTIDRAIN BACK DEVICE AND BY-PASS VALVE
First Intake Thread Quantity Per Inch16
Media for Which DesignedFUEL/OIL, HYDROCARBON
Body Diameter2.9375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-074-2161B-178 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
3110-00-984-72472627518 INTERCHANGEABLE
Bearing,ball,annular
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
Cross-Reference Index
Part NumberManufacturer
B178 PRIMARY Baldwin Filters (USA)
Related Parts
5945-00-074-2161INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
B-178
3110-00-984-7247INTERCHANGEABLE
BEARING,BALL,ANNULAR
2627518

Frequently Asked Questions

What is NSN 2940-01-671-0310?

NSN 2940-01-671-0310 is a Filter,fluid, manufactured by Baldwin Filters, classified under FSC 2940 (No Item Name Available). Status: active.

What are the part numbers for NSN 2940-01-671-0310?

NSN 2940-01-671-0310 has 1 cross-referenced part number: B178 (Baldwin Filters).

What NSN replaces 2940-01-671-0310?

There are 2 known substitutes for 2940-01-671-0310: 5945-00-074-2161, 3110-00-984-7247. Verify interchangeability with system specifications before substitution.

What are the specifications of B178?

Key specifications for B178: Style Designator: CYLINDRICAL W/ INTEGRAL OUTER CASING; Part Name Assigned by Controlling Agency: FULL-FLOW LUBE SPIN-ON FILTER; Nominal Thread Size: 0.750 INCHES IN; Body Overall Length: 4.8437 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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