NSN 3040-01-475-8970 · NIIN 014758970 · Part number 124-4322623 PC 1
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-475-8970 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-475-8970. Manufacturer of record part number: 124-4322623 PC 1.
Also searched as3040-01-475-8970 ·
3040014758970 ·
NIIN 014758970 ·
01-475-8970 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 124-4322623 PC 1 · 4322621 · 4322623 · 124-4322621 PC 3
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 12.000 INCHES NOMINAL FIRST END IN
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 12.000 INCHES NOMINAL SECOND END IN
End Hole/ball Diameter: 1.016 INCHES NOMINAL FIRST END IN
End Hole/ball Diameter: 1.016 INCHES NOMINAL SECOND END IN
Bore Length: 3.3125 INCHES NOMINAL IN
Style Designator: CLEVIS, TONGUE
Material Document and Classification: MIL-S-15085 GR B MIL SPEC SINGLE MATERIAL RESPONSE
Identification
NSN: 3040-01-475-8970
NIIN: 014758970
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 124-4322623 PC 1
Manufacturer: Naval Sea Systems Command
General Description
The Bell Crank, cataloged under National Stock Number 3040-01-475-8970, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3040-01-475-8970
Primary Part Number
124-4322623 PC 1
Item Name
Bell Crank
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball
12.000 INCHES NOMINAL FIRST END IN
Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball
12.000 INCHES NOMINAL SECOND END IN
End Hole/ball Diameter
1.016 INCHES NOMINAL FIRST END IN
End Hole/ball Diameter
1.016 INCHES NOMINAL SECOND END IN
Bore Length
3.3125 INCHES NOMINAL IN
Style Designator
CLEVIS, TONGUE
Material Document and Classification
MIL-S-15085 GR B MIL SPEC SINGLE MATERIAL RESPONSE
Fulcrum Bore Shape
PLAIN
Bore Diameter
2.500 INCHES NOMINAL IN
Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL B — Remove Demilitarization Key Points
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-475-8979124-4322623 PC 2POSSIBLE MATCH
ARM,BELL CRANK
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-9285124-4322623 PC 7POSSIBLE MATCH
SHAFT,STRAIGHT
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-9289124-4322623 PC 6POSSIBLE MATCH
SHAFT,STRAIGHT
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-9310124-4322623 PC 13POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-9523124-4322623 PC 37POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-9535124-4322623 PC 36POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3020-01-475-9628124-4322623 PC 24POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Naval Sea Systems Command
3020-01-475-9632124-4322623 PC 25POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Naval Sea Systems Command
NSN 3040-01-475-8970 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-475-8970?
NSN 3040-01-475-8970 has 2 manufacturer part numbers on file: 124-4322621 PC 3 (Naval Sea Systems Command), 124-4322623 PC 1 (Naval Sea Systems Command).
What NSN replaces 3040-01-475-8970?
8 possible matches (shared part number, not a government interchangeability claim): 3040-01-475-8979, 3040-01-475-9285, 3040-01-475-9289. Verify interchangeability with system specifications before substitution.
What are the specifications of 124-4322623 PC 1?
Key specifications for 124-4322623 PC 1: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 12.000 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 12.000 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 1.016 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 1.016 INCHES NOMINAL SECOND END IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-475-8970 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.
What is the DEMIL code for NSN 3040-01-475-8970?
NSN 3040-01-475-8970 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.