PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1814Cup,oil,lubricating

Stewart-Warner Alemite Corp · NSN 4730-00-640-1054 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-640-1054 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-640-1054. Primary manufacturer part number: 1814.
Features
  • Cup,oil,lubricating — FSC 4730
  • Assembly Clearance Radius: 0.188 INCHES NOMINAL IN
  • Height: 0.328 INCHES NOMINAL IN
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Style Designator: STRAIGHT, W/BALL CHECK, W/SHOULDER
  • Shank Length: 0.281 INCHES NOMINAL IN
  • Shank Diameter: 0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Cup,oil,lubricating, cataloged under National Stock Number 4730-00-640-1054, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Stewart-Warner Alemite Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-640-1054
Primary Part Number1814
Item NameCup,oil,lubricating
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerStewart-Warner Alemite Corp
StatusACTIVE
Assembly Clearance Radius0.188 INCHES NOMINAL IN
Height0.328 INCHES NOMINAL IN
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT, W/BALL CHECK, W/SHOULDER
Shank Length0.281 INCHES NOMINAL IN
Shank Diameter0.315 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-054-3328 INTERCHANGEABLE
Washer,lock
3110-00-100-0329572 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
6240-00-143-31701814 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5930-00-186-0519 INTERCHANGEABLE
Switch,rotary
6810-00-241-1172 INTERCHANGEABLE
Cupric Oxide,powdered
3020-00-244-07564001814 INTERCHANGEABLE
Gear,helical
Agco Corp Parts Opn
5315-00-448-66801814 INTERCHANGEABLE
Pin,straight,headless
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4440-00-529-4896 INTERCHANGEABLE
Dehydrator Unit,nonreactivating
2920-00-580-3435CH38046 INTERCHANGEABLE
Igniter,spark,gas Turbine Engine
Champion Aerospace Llc
5950-00-681-68792030005 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
1814 Stewart-Warner Alemite Corp (USA)
1814 Stewart-Warner Corporation (USA)
1814 Stewart-Warner Alemite Sales Co Inc (USA)
Related Parts
5310-00-054-3328INTERCHANGEABLE
WASHER,LOCK
3110-00-100-0329INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
572
6240-00-143-3170INTERCHANGEABLE
LAMP,INCANDESCENT
1814
5930-00-186-0519INTERCHANGEABLE
SWITCH,ROTARY
6810-00-241-1172INTERCHANGEABLE
CUPRIC OXIDE,POWDERED
3020-00-244-0756INTERCHANGEABLE
GEAR,HELICAL
4001814
5315-00-448-6680INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
1814
4440-00-529-4896INTERCHANGEABLE
DEHYDRATOR UNIT,NONREACTIVATING
2920-00-580-3435INTERCHANGEABLE
IGNITER,SPARK,GAS TURBINE ENGINE
CH38046
5950-00-681-6879INTERCHANGEABLE
TRANSFORMER,POWER
2030005
6250-00-717-6455INTERCHANGEABLE
LAMPHOLDER
120152-001
3439-01-104-1188INTERCHANGEABLE
ELECTRODE,WELDING
1814

Frequently Asked Questions

What is NSN 4730-00-640-1054?

NSN 4730-00-640-1054 is a Cup,oil,lubricating, manufactured by Stewart-Warner Alemite Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-640-1054?

NSN 4730-00-640-1054 has 3 cross-referenced part numbers: 1814 (Stewart-Warner Alemite Corp), 1814 (Stewart-Warner Corporation), 1814 (Stewart-Warner Alemite Sales Co Inc).

What NSN replaces 4730-00-640-1054?

There are 12 known substitutes for 4730-00-640-1054: 5310-00-054-3328, 3110-00-100-0329, 6240-00-143-3170 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1814?

Key specifications for 1814: Assembly Clearance Radius: 0.188 INCHES NOMINAL IN; Height: 0.328 INCHES NOMINAL IN; Surface Treatment: ZINC OVERALL; Material: STEEL OVERALL. 7 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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