PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-8-51Shaft,shouldered

General Signal Corp · NSN 3040-00-354-3393 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-354-3393 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-354-3393. Primary manufacturer part number: 11-8-51.
Features
  • Shaft,shouldered — FSC 3040
  • First End Distance From Keyway Center to End: 0.750 INCHES NOMINAL IN
  • First End Keyway Width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
  • Step Quantity: 2
  • First End Diameter: 1.1807 INCHES MINIMUM AND 1.1810 INCHES MAXIMUM IN
  • FSC Application Data: CAUSTIC PUMP ASSEMBLY,OXYGEN AND NITROGEN
  • Material: STEEL
  • External Keyway Length: 0.250 INCHES NOMINAL FIRST END IN
Applications
  • Applications requiring Steel construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-354-3393, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is General Signal Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3040-00-354-3393
Primary Part Number11-8-51
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerGeneral Signal Corp
StatusCANCELLED
First End Distance From Keyway Center to End0.750 INCHES NOMINAL IN
First End Keyway Width0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
Step Quantity2
First End Diameter1.1807 INCHES MINIMUM AND 1.1810 INCHES MAXIMUM IN
FSC Application DataCAUSTIC PUMP ASSEMBLY,OXYGEN AND NITROGEN
MaterialSTEEL
External Keyway Length0.250 INCHES NOMINAL FIRST END IN
Second End Diameter1.1807 INCHES MINIMUM AND 1.1810 INCHES MAXIMUM IN
Second End External Thread Length0.563 INCHES NOMINAL IN
Largest Step Diameter21.625 INCHES NOMINAL IN
End SimilarityNOT IDENTICAL
Second End StyleEXTERNAL THREADED
First End StyleWOODRUFF KEYWAY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5950-00-175-485311851 INTERCHANGEABLE
Saturable Reactor
Standex Electronics, Inc.
5950-00-767-5135 INTERCHANGEABLE
Coil,radio Frequency
6625-00-831-4046 INTERCHANGEABLE
Test Set,interconnecting Box
5945-00-923-42919M0990 INTERCHANGEABLE
Relay,electromagnetic
Caterpillar Inc Div Caterpillar Defense
5940-01-121-03657K4474 INTERCHANGEABLE
Terminal,quick Disconnect
Caterpillar Inc Div Caterpillar Defense
5120-01-367-3320 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
2530-01-593-852230-591 INTERCHANGEABLE
Reservoir,remote,power Steering
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
11-8-51 General Signal Corp (USA)
11-8-51 Aurora Pump a Unit of General Signal Corp (USA)
C9-774-09-0004 Air Products & Chemicals, Inc (USA)
50-6 Aurora Pump a Unit of General Signal Corp (USA)
E50-6A Aurora Pump a Unit of General Signal Corp (USA)
E50-6A Air Products & Chemicals, Inc (USA)
E50-6A General Signal Corp (USA)
Related Parts
5950-00-175-4853INTERCHANGEABLE
SATURABLE REACTOR
11851
5950-00-767-5135INTERCHANGEABLE
COIL,RADIO FREQUENCY
6625-00-831-4046INTERCHANGEABLE
TEST SET,INTERCONNECTING BOX
5945-00-923-4291INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
9M0990
5940-01-121-0365INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
7K4474
5120-01-367-3320INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
2530-01-593-8522INTERCHANGEABLE
RESERVOIR,REMOTE,POWER STEERING
30-591

Frequently Asked Questions

What is NSN 3040-00-354-3393?

NSN 3040-00-354-3393 is a Shaft,shouldered, manufactured by General Signal Corp, classified under FSC 3040 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3040-00-354-3393?

NSN 3040-00-354-3393 has 7 cross-referenced part numbers: 11-8-51 (General Signal Corp), 11-8-51 (Aurora Pump a Unit of General Signal Corp), C9-774-09-0004 (Air Products & Chemicals, Inc), 50-6 (Aurora Pump a Unit of General Signal Corp), E50-6A (Aurora Pump a Unit of General Signal Corp) and 2 more.

What NSN replaces 3040-00-354-3393?

There are 7 known substitutes for 3040-00-354-3393: 5950-00-175-4853, 5950-00-767-5135, 6625-00-831-4046 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-8-51?

Key specifications for 11-8-51: First End Distance From Keyway Center to End: 0.750 INCHES NOMINAL IN; First End Keyway Width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN; Step Quantity: 2; First End Diameter: 1.1807 INCHES MINIMUM AND 1.1810 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3040-00-354-3393 still in active supply?

NSN 3040-00-354-3393 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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