PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC-B-70100Bell Crank

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3040-00-356-3286 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-356-3286 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-356-3286. Primary manufacturer part number: SC-B-70100.
Features
  • Bell Crank — FSC 3040
  • Bore Diameter: 0.377 INCHES NOMINAL IN
  • Material: STEEL
  • Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.398 INCHES NOMINAL SECOND END IN
  • Style Designator: FLAT, ONE OR MORE HOLES BOTH ARMS
  • End Hole/ball Diameter: 0.156 INCHES NOMINAL SECOND END IN
  • Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.875 INCHES NOMINAL FIRST END IN
  • FSC Application Data: TELETYPE AND FACSIMILE EQUIPMENT
Applications
  • Applications requiring Steel construction
General Description

The Bell Crank, cataloged under National Stock Number 3040-00-356-3286, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-356-3286
Primary Part NumberSC-B-70100
Item NameBell Crank
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Bore Diameter0.377 INCHES NOMINAL IN
MaterialSTEEL
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball1.398 INCHES NOMINAL SECOND END IN
Style DesignatorFLAT, ONE OR MORE HOLES BOTH ARMS
End Hole/ball Diameter0.156 INCHES NOMINAL SECOND END IN
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball0.875 INCHES NOMINAL FIRST END IN
FSC Application DataTELETYPE AND FACSIMILE EQUIPMENT
Bore Length0.078 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5935-00-497-0938SMC2007114 INTERCHANGEABLE
Insert,electrical Connector
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-01-186-506550214 INTERCHANGEABLE
Switch,electrical
Setra Systems, Inc. Dba Gems Sensors
5995-01-214-1257300826-1 INTERCHANGEABLE
Lead,electrical
Moog Inc.
4820-01-521-61454805 INTERCHANGEABLE
Valve,stop-Check
Hunt Valve Company, Inc.
4820-01-521-86015021-4 PT. NO. 6 INTERCHANGEABLE
Disk,valve
Hunt Valve Company, Inc.
4820-01-521-8610 INTERCHANGEABLE
Stem,fluid Valve
4820-01-521-86185021-4 PT. NO. 17 INTERCHANGEABLE
Seat,valve
Hunt Valve Company, Inc.
4820-01-521-8619C202016263F INTERCHANGEABLE
Hinge,swing Check Valve
Hunt Valve Company, Inc.
5365-01-522-1302 INTERCHANGEABLE
Plug,machine Thread
5945-01-562-721150214 INTERCHANGEABLE
Relay,electromagnetic
Crispaire Corp Dba Marvair Co
Cross-Reference Index
Part NumberManufacturer
SC-B-70100 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
50214 Kleinschmidt Inc (USA)
Related Parts
5935-00-497-0938INTERCHANGEABLE
INSERT,ELECTRICAL CONNECTOR
SMC2007114
5930-01-186-5065INTERCHANGEABLE
SWITCH,ELECTRICAL
50214
5995-01-214-1257INTERCHANGEABLE
LEAD,ELECTRICAL
300826-1
4820-01-521-6145INTERCHANGEABLE
VALVE,STOP-CHECK
4805
4820-01-521-8601INTERCHANGEABLE
DISK,VALVE
5021-4 PT. NO. 6
4820-01-521-8610INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-521-8618INTERCHANGEABLE
SEAT,VALVE
5021-4 PT. NO. 17
4820-01-521-8619INTERCHANGEABLE
HINGE,SWING CHECK VALVE
C202016263F
5365-01-522-1302INTERCHANGEABLE
PLUG,MACHINE THREAD
5945-01-562-7211INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
50214
7490-01-679-4717INTERCHANGEABLE
SHREDDING MACHINE,PAPER
50214

Frequently Asked Questions

What is NSN 3040-00-356-3286?

NSN 3040-00-356-3286 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 3040-00-356-3286?

NSN 3040-00-356-3286 has 2 cross-referenced part numbers: SC-B-70100 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 50214 (Kleinschmidt Inc).

What NSN replaces 3040-00-356-3286?

There are 11 known substitutes for 3040-00-356-3286: 5935-00-497-0938, 5930-01-186-5065, 5995-01-214-1257 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC-B-70100?

Key specifications for SC-B-70100: Bore Diameter: 0.377 INCHES NOMINAL IN; Material: STEEL; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.398 INCHES NOMINAL SECOND END IN; Style Designator: FLAT, ONE OR MORE HOLES BOTH ARMS. 8 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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