PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BF4Air Cleaner,intake

Lenz Inc Dba the Lenz Company · NSN 2940-00-629-2063 · FSC 2940 · No Item Name Available
Verified by PartsTable
NSN 2940-00-629-2063 — this item is cataloged by the U.S. Government under National Stock Number 2940-00-629-2063. Primary manufacturer part number: BF4.
Features
  • Air Cleaner,intake — FSC 2940
  • Quantity: 1
  • Mounting Provision Thread Series Designator: NPT
  • Material: STEEL
  • Pressure Relief Valve: NOT INCLUDED
  • Backfire Valve: NOT INCLUDED
  • Element Replaceability: REPLACEABLE
  • Element Type: HOODED
Applications
  • Applications requiring Steel construction
General Description

The Air Cleaner,intake, cataloged under National Stock Number 2940-00-629-2063, is classified within Federal Supply Class 2940 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Lenz Inc Dba the Lenz Company. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2940-00-629-2063
Primary Part NumberBF4
Item NameAir Cleaner,intake
FSC / FSG2940 / 29 — No Item Name Available
ManufacturerLenz Inc Dba the Lenz Company
StatusACTIVE
Quantity1
Mounting Provision Thread Series DesignatorNPT
MaterialSTEEL
Pressure Relief ValveNOT INCLUDED
Backfire ValveNOT INCLUDED
Element ReplaceabilityREPLACEABLE
Element TypeHOODED
Outlet TypeTHREADED
SubmersibilityNONSUBMERSIBLE
Outlet LocationBOTTOM OF CLEANER
Outside Diameter1.375 INCHES NOMINAL IN
Inlet TypeOPEN
Air Cleaner TypeTHROW-AWAY
Remote Location Inlet AdapterNOT INCLUDED
Thread LocationEXTERNAL
Thread DirectionRIGHT-HAND
Filter TypeDRY
Mounting Provision Thread Size1/4-18
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-012-0423100153 INTERCHANGEABLE
Washer,lock
Mcculloch Corp
4730-00-277-5736SAE J530 4-4 130138B INTERCHANGEABLE
Coupling,pipe
Sae International Dba Sae International
5995-01-446-628574-10-011 INTERCHANGEABLE
Cable Assembly,radio Frequency
Lockheed Martin Corporation Div Is&s
Cross-Reference Index
Part NumberManufacturer
BF4 PRIMARY Lenz Inc Dba the Lenz Company (USA)
74-100-11 Precision Laboratories Inc (USA)
BF-4 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
74-100-11-8 Precision Laboratories Inc (USA)
Related Parts
5310-00-012-0423INTERCHANGEABLE
WASHER,LOCK
100153
4730-00-277-5736INTERCHANGEABLE
COUPLING,PIPE
SAE J530 4-4 130138B
5995-01-446-6285INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
74-10-011

Frequently Asked Questions

What is NSN 2940-00-629-2063?

NSN 2940-00-629-2063 is a Air Cleaner,intake, manufactured by Lenz Inc Dba the Lenz Company, classified under FSC 2940 (No Item Name Available). Status: active.

What are the part numbers for NSN 2940-00-629-2063?

NSN 2940-00-629-2063 has 4 cross-referenced part numbers: BF4 (Lenz Inc Dba the Lenz Company), 74-100-11 (Precision Laboratories Inc), BF-4 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 74-100-11-8 (Precision Laboratories Inc).

What NSN replaces 2940-00-629-2063?

There are 3 known substitutes for 2940-00-629-2063: 5310-00-012-0423, 4730-00-277-5736, 5995-01-446-6285. Verify interchangeability with system specifications before substitution.

What are the specifications of BF4?

Key specifications for BF4: Quantity: 1; Mounting Provision Thread Series Designator: NPT; Material: STEEL; Pressure Relief Valve: NOT INCLUDED. 19 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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