PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6439-1Collar,shaft

Eaton Aviation Corporation · NSN 3040-01-460-3888 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-460-3888 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-460-3888. Primary manufacturer part number: 6439-1.
Features
  • Collar,shaft — FSC 3040
  • Thickness: 0.750 INCHES NOMINAL IN
  • Material: STEEL COMP 304
  • Securing Hole Type and Location: THREADED ALL HOLES
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 304 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE
  • Screw Thread Quantity Per Inch and Location: 28 ALL HOLES
  • Style Designator: PLAIN ROUND
  • Nominal Thread Size: 0.250 INCHES ALL HOLES IN
Applications
  • Applications requiring Steel Comp 304 construction
General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-460-3888, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Eaton Aviation Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-460-3888
Primary Part Number6439-1
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerEaton Aviation Corporation
StatusACTIVE
Thickness0.750 INCHES NOMINAL IN
MaterialSTEEL COMP 304
Securing Hole Type and LocationTHREADED ALL HOLES
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 304 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30304 ASSN STD SINGLE MATERIAL RESPONSE
Screw Thread Quantity Per Inch and Location28 ALL HOLES
Style DesignatorPLAIN ROUND
Nominal Thread Size0.250 INCHES ALL HOLES IN
Screw Thread Series Designator and LocationALL HOLES UNF
Outside Diameter2.500 INCHES NOMINAL IN
Bore Diameter2.0050 INCHES MINIMUM AND 2.0150 INCHES MAXIMUM IN
Securing Hole Quantity2
Angle Between Centerlines of Securing Holes in Deg180.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-00-011-370210DX489 INTERCHANGEABLE
Cup,oil,lubricating
Fwd Seagrave Holdings Lp
6150-00-168-1293 INTERCHANGEABLE
Bus,conductor
6240-00-241-2288204-6266 INTERCHANGEABLE
Lamp,incandescent
Psi-Peripheral Support
6150-00-254-8441017343-000 INTERCHANGEABLE
Bus,conductor
Saft America Inc. Dba Tadiran Batteries Div Aviation Division
5905-00-257-84710363-10 INTERCHANGEABLE
Resistor,adjustable
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
2540-00-409-63846439 INTERCHANGEABLE
Pull Finger
Sommer & Maca Industries, Inc Dba Somaca
5945-01-245-20726-439 INTERCHANGEABLE
Relay,hybrid
Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp.
7030-01-494-2687 INTERCHANGEABLE
Software Kit
5340-01-519-745764391 INTERCHANGEABLE
Bracket,mounting
Adams Rite Aerospace, Inc
6220-01-593-590164391 INTERCHANGEABLE
Light,utility,vehicular
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
Cross-Reference Index
Part NumberManufacturer
6439-1 Eaton Aviation Corporation (USA)
6439 Eaton Aviation Corporation (USA)
6439-1 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
4730-00-011-3702INTERCHANGEABLE
CUP,OIL,LUBRICATING
10DX489
6150-00-168-1293INTERCHANGEABLE
BUS,CONDUCTOR
6240-00-241-2288INTERCHANGEABLE
LAMP,INCANDESCENT
204-6266
6150-00-254-8441INTERCHANGEABLE
BUS,CONDUCTOR
017343-000
5905-00-257-8471INTERCHANGEABLE
RESISTOR,ADJUSTABLE
0363-10
2540-00-409-6384INTERCHANGEABLE
PULL FINGER
6439
5945-01-245-2072INTERCHANGEABLE
RELAY,HYBRID
6-439
7030-01-494-2687INTERCHANGEABLE
SOFTWARE KIT
5340-01-519-7457INTERCHANGEABLE
BRACKET,MOUNTING
64391
6220-01-593-5901INTERCHANGEABLE
LIGHT,UTILITY,VEHICULAR
64391

Frequently Asked Questions

What is NSN 3040-01-460-3888?

NSN 3040-01-460-3888 is a Collar,shaft, manufactured by Eaton Aviation Corporation, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-460-3888?

NSN 3040-01-460-3888 has 3 cross-referenced part numbers: 6439-1 (Eaton Aviation Corporation), 6439 (Eaton Aviation Corporation), 6439-1 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 3040-01-460-3888?

There are 10 known substitutes for 3040-01-460-3888: 4730-00-011-3702, 6150-00-168-1293, 6240-00-241-2288 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6439-1?

Key specifications for 6439-1: Thickness: 0.750 INCHES NOMINAL IN; Special Features: NHA 1740-01-258-3231; Material: STEEL COMP 304; Securing Hole Type and Location: THREADED ALL HOLES. 14 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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