PartsTable TECHNICAL DATA SHEET
NSN 3040-00-570-7879Government record, cited

Shaft, Shouldered3040-00-570-7879

NSN 3040-00-570-7879 · NIIN 005707879 · Part number 20-18511-3
The Boeing Company Div Defense · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 76301
Government record, cited
NSN 3040-00-570-7879 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-570-7879. Manufacturer of record part number: 20-18511-3.
Also searched as  3040-00-570-7879 · 3040005707879 · NIIN 005707879 · 00-570-7879 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 76301 · 20-18511-3
Nearby stock numbers  ·
Features
  • Shaft,shouldered — FSC 3040
  • Surface Finish: 32.0 MICROINCHES
  • Step Quantity: 3
  • Largest Step Diameter: 0.800 INCHES NOMINAL IN
  • Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 4340
  • 1 manufacturer part number on file
  • Manufacturer of record: The Boeing Company Div Defense
Identification
  • NSN: 3040-00-570-7879
  • NIIN: 005707879
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 20-18511-3
  • Manufacturer: The Boeing Company Div Defense
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-570-7879, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-570-7879
Primary Part Number20-18511-3
Item NameShaft,shouldered
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Surface Finish32.0 MICROINCHES
Step Quantity3
Largest Step Diameter0.800 INCHES NOMINAL IN
Material Document and ClassificationMIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 4340
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL B — Remove Demilitarization Key Points
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
20-18511-3 PRIMARY The Boeing Company Div Defense (USA)
No interchangeability data on file.
Other items in FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046
3040-00-001-0046 · Item name not on file
3040-00-001-0047
3040-00-001-0047 · Item name not on file
3040-00-001-0048
3040-00-001-0048 · Item name not on file
3040-00-001-0068
3040-00-001-0068 · Item name not on file
3040-00-001-0077
3040-00-001-0077 · Item name not on file
3040-00-001-0078
3040-00-001-0078 · Item name not on file
3040-00-001-0089
3040-00-001-0089 · Item name not on file
3040-00-001-1224
3040-00-001-1224 · Item name not on file

Frequently Asked Questions

What is NSN 3040-00-570-7879?

NSN 3040-00-570-7879 is a Shaft,shouldered, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-00-570-7879?

NSN 3040-00-570-7879 has 1 manufacturer part number on file: 20-18511-3 (The Boeing Company Div Defense).

What are the specifications of 20-18511-3?

Key specifications for 20-18511-3: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; Largest Step Diameter: 0.800 INCHES NOMINAL IN; Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE. 5 specifications are documented in the U.S. Government catalog.

Is NSN 3040-00-570-7879 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 3040-00-570-7879?

NSN 3040-00-570-7879 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.
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