PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-148799Bell Crank

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3040-00-030-0433 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-030-0433 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-030-0433. Primary manufacturer part number: SM-B-148799.
Features
  • Bell Crank — FSC 3040
  • Material: STEEL
  • End Hole/ball Diameter: 0.156 INCHES NOMINAL SECOND END IN
  • Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.469 INCHES NOMINAL FIRST END IN
  • Features Provided: FULCRUM SPLIT HUB
  • End Hole/ball Diameter: 0.125 INCHES NOMINAL FIRST END IN
  • Style Designator: FLAT-OFFSET BOTH ARMS, CLEVIS AT POINT
  • Bore Diameter: 0.156 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Bell Crank, cataloged under National Stock Number 3040-00-030-0433, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-030-0433
Primary Part NumberSM-B-148799
Item NameBell Crank
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
MaterialSTEEL
End Hole/ball Diameter0.156 INCHES NOMINAL SECOND END IN
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball0.469 INCHES NOMINAL FIRST END IN
Features ProvidedFULCRUM SPLIT HUB
End Hole/ball Diameter0.125 INCHES NOMINAL FIRST END IN
Style DesignatorFLAT-OFFSET BOTH ARMS, CLEVIS AT POINT
Bore Diameter0.156 INCHES NOMINAL IN
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball0.250 INCHES NOMINAL SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5365-00-119-640553904 INTERCHANGEABLE
Spacer,ring
Hamilton Sundstrand Corporation Dba Collins Aerospace
6515-01-103-0237 INTERCHANGEABLE
Bone Plate
6220-01-180-01145390-304 INTERCHANGEABLE
Light,navigational,aircraft
Luminescent Systems, Inc. Dba Lsi Div Lsi-Nh
3120-01-297-70755390-4 INTERCHANGEABLE
Bushing,sleeve
Tescom Corp Dba Tescom Div Tescom
5998-01-608-595753904 INTERCHANGEABLE
Circuit Card Assembly
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
53904 Kleinschmidt Inc (USA)
SM-B-148799 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5365-00-119-6405INTERCHANGEABLE
SPACER,RING
53904
6515-01-103-0237INTERCHANGEABLE
BONE PLATE
6220-01-180-0114INTERCHANGEABLE
LIGHT,NAVIGATIONAL,AIRCRAFT
5390-304
3120-01-297-7075INTERCHANGEABLE
BUSHING,SLEEVE
5390-4
5998-01-608-5957INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
53904

Frequently Asked Questions

What is NSN 3040-00-030-0433?

NSN 3040-00-030-0433 is a Bell Crank, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-030-0433?

NSN 3040-00-030-0433 has 2 cross-referenced part numbers: 53904 (Kleinschmidt Inc), SM-B-148799 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 3040-00-030-0433?

There are 5 known substitutes for 3040-00-030-0433: 5365-00-119-6405, 6515-01-103-0237, 6220-01-180-0114 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-148799?

Key specifications for SM-B-148799: Material: STEEL; End Hole/ball Diameter: 0.156 INCHES NOMINAL SECOND END IN; Special Features: 0.156 IN. DIA DRILLED HOLE IN FULCRUM SPLIT HUB; CASEHARDENED IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.469 INCHES NOMINAL FIRST END 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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