PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4734Shaft,shouldered

Lockheed Martin Corp · NSN 3040-00-053-8478 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-053-8478 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-053-8478. Primary manufacturer part number: 4734.
Features
  • Shaft,shouldered — FSC 3040
  • Largest Step Diameter: 0.250 INCHES NOMINAL IN
  • Step Quantity: 2
  • End Similarity: IDENTICAL
  • First End Style: EXTERNAL THREADED
  • First End External Thread Length: 0.313 INCHES NOMINAL IN
  • Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-053-8478, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Lockheed Martin Corp. 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
NSN3040-00-053-8478
Primary Part Number4734
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Largest Step Diameter0.250 INCHES NOMINAL IN
Step Quantity2
End SimilarityIDENTICAL
First End StyleEXTERNAL THREADED
First End External Thread Length0.313 INCHES NOMINAL IN
Material Document and ClassificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialSTEEL
FSC Application DataSEAT ASSY,PILOT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-120-31141228A53 INTERCHANGEABLE
Bearing,roller,needle
Meritor Heavy Vehicle Systems, Llc
5325-00-281-5403 INTERCHANGEABLE
Ring,retaining
5977-00-523-5786 INTERCHANGEABLE
Brush,electrical Contact
5905-00-581-658090J1R5 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
6240-00-722-02684415 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
2520-00-741-2537 INTERCHANGEABLE
Bearing Carrier,clutch Release
6530-01-026-4660 INTERCHANGEABLE
Cup,specimen
5945-01-192-9954 INTERCHANGEABLE
Relay
5935-01-448-94064734 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Keystone Electronics Corp
5325-01-656-6634 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
4734 B/e Aerospace Inc Dba Interturbine (USA)
4734 PRIMARY Lockheed Martin Corp (USA)
Related Parts
3110-00-120-3114INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
1228A53
5325-00-281-5403INTERCHANGEABLE
RING,RETAINING
5977-00-523-5786INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5905-00-581-6580INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
90J1R5
6240-00-722-0268INTERCHANGEABLE
LAMP,INCANDESCENT
4415
2520-00-741-2537INTERCHANGEABLE
BEARING CARRIER,CLUTCH RELEASE
6530-01-026-4660INTERCHANGEABLE
CUP,SPECIMEN
5945-01-192-9954INTERCHANGEABLE
RELAY
5935-01-448-9406INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
4734
5325-01-656-6634INTERCHANGEABLE
RING,RETAINING
3950-01-715-8451INTERCHANGEABLE
HOIST,CHAIN
4734

Frequently Asked Questions

What is NSN 3040-00-053-8478?

NSN 3040-00-053-8478 is a Shaft,shouldered, manufactured by Lockheed Martin Corp, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-053-8478?

NSN 3040-00-053-8478 has 2 cross-referenced part numbers: 4734 (B/e Aerospace Inc Dba Interturbine), 4734 (Lockheed Martin Corp).

What NSN replaces 3040-00-053-8478?

There are 11 known substitutes for 3040-00-053-8478: 3110-00-120-3114, 5325-00-281-5403, 5977-00-523-5786 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4734?

Key specifications for 4734: Largest Step Diameter: 0.250 INCHES NOMINAL IN; Step Quantity: 2; Overall Length: 6.812 INCHES NOMINAL IN; End Similarity: IDENTICAL. 9 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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