PartsTable TECHNICAL DATA SHEET
NSN 3040-01-070-2603Government record, cited

Shaft, Shouldered3040-01-070-2603

NSN 3040-01-070-2603 · NIIN 010702603 · Part number 1856121
Northrop Grumman Systems Corporation · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 03956
Government record, cited
NSN 3040-01-070-2603 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-070-2603. Manufacturer of record part number: 1856121.
Also searched as  3040-01-070-2603 · 3040010702603 · NIIN 010702603 · 01-070-2603 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 03956 · 1856121
Nearby stock numbers  ·
Features
  • Shaft,shouldered — FSC 3040
  • Surface Finish: 63.0 MICROINCHES
  • Second End External Thread Length: 0.148 INCHES NOMINAL IN
  • Step Quantity: 6
  • First End Diameter: 0.2490 INCHES NOMINAL IN
  • Second End Diameter: 0.1640 INCHES NOMINAL IN
  • Largest Step Diameter: 0.375 INCHES NOMINAL IN
  • First End Style: PLAIN
Identification
  • NSN: 3040-01-070-2603
  • NIIN: 010702603
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 1856121
  • Manufacturer: Northrop Grumman Systems Corporation
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-070-2603, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 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
NSN3040-01-070-2603
Primary Part Number1856121
Item NameShaft,shouldered
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Surface Finish63.0 MICROINCHES
Second End External Thread Length0.148 INCHES NOMINAL IN
Step Quantity6
First End Diameter0.2490 INCHES NOMINAL IN
Second End Diameter0.1640 INCHES NOMINAL IN
Largest Step Diameter0.375 INCHES NOMINAL IN
First End StylePLAIN
End SimilarityNOT IDENTICAL
Second End StyleEXTERNAL THREADED
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1856121 PRIMARY Northrop Grumman Systems Corporation (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 3040-01-070-2603?

NSN 3040-01-070-2603 is a Shaft,shouldered, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-070-2603?

NSN 3040-01-070-2603 has 1 manufacturer part number on file: 1856121 (Northrop Grumman Systems Corporation).

What are the specifications of 1856121?

Key specifications for 1856121: Surface Finish: 63.0 MICROINCHES; Second End External Thread Length: 0.148 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 0.2490 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-070-2603 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.

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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