PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33891-ACup,grease

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4730-01-307-8447 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-307-8447 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-307-8447. Primary manufacturer part number: 33891-A.
Features
  • Cup,grease — FSC 4730
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Style Designator: STRAIGHT, CAP FEED
  • Criticality Code Justification: FEAT
  • 15 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Applications requiring Steel Overall construction
General Description

The Cup,grease, cataloged under National Stock Number 4730-01-307-8447, 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 Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-307-8447
Primary Part Number33891-A
Item NameCup,grease
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusCANCELLED
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT, CAP FEED
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-106-1743A-33891-A INTERCHANGEABLE
Cup,grease
Electric Boat Corporation Div General Dynamics Electric Boat
2915-00-110-5521 INTERCHANGEABLE
Nozzle,fuel Injection
4730-00-196-1541A733S-40CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
2910-00-287-1912 INTERCHANGEABLE
Filter Element,fluid
4730-00-288-84941-0-4 INTERCHANGEABLE
Cup,grease
Mid-State Sales, Inc. Div Defense Products Group
4730-00-402-954025007 INTERCHANGEABLE
Adapter,straight,pipe to Hose
United States Plastic Corp
5970-00-498-870725007 INTERCHANGEABLE
Tape,non-Adhesive
Nfa Corp Dba Nfa Corp Div Hope Global
5330-00-707-4958350HD216 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
4940-01-117-907870701 INTERCHANGEABLE
Pole
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
6680-01-139-37552-500-7 INTERCHANGEABLE
Switch,liquid Level
Pneumercator Company, Inc.
Cross-Reference Index
Part NumberManufacturer
33891-A PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
3505-16 Electric Boat Corp Dba Electro Dynamic (USA)
A-803455-0-01 Electric Boat Corp Dba Electro Dynamic (USA)
3505-16 ITEM 57 Electric Boat Corp Dba Electro Dynamic (USA)
2500-7 Electric Boat Corp Dba Electro Dynamic (USA)
0-FEMALE Electric Boat Corp Dba Electro Dynamic (USA)
808093-0-51 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
808093 Electric Boat Corp Dba Electro Dynamic (USA)
2500-7 ITEM 144 Electric Boat Corp Dba Electro Dynamic (USA)
3505-14 ITEM 64 Electric Boat Corp Dba Electro Dynamic (USA)
202-OS Bowen Products Corp (USA)
808093-0-51 Electric Boat Corp Dba Electro Dynamic (USA)
2500-7 ITEM 144 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
33891-A Electric Boat Corp Dba Electro Dynamic (USA)
202-OS Mid-State Sales, Inc. Div Defense Products Group (USA)
Related Parts
4730-00-106-1743INTERCHANGEABLE
CUP,GREASE
A-33891-A
2915-00-110-5521INTERCHANGEABLE
NOZZLE,FUEL INJECTION
4730-00-196-1541INTERCHANGEABLE
NIPPLE,PIPE
A733S-40CFG
2910-00-287-1912INTERCHANGEABLE
FILTER ELEMENT,FLUID
4730-00-288-8494INTERCHANGEABLE
CUP,GREASE
1-0-4
4730-00-402-9540INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
25007
5970-00-498-8707INTERCHANGEABLE
TAPE,NON-ADHESIVE
25007
5330-00-707-4958INTERCHANGEABLE
SEAL,PLAIN ENCASED
350HD216
4940-01-117-9078INTERCHANGEABLE
POLE
70701
6680-01-139-3755INTERCHANGEABLE
SWITCH,LIQUID LEVEL
2-500-7
3110-01-237-2946INTERCHANGEABLE
BEARING,BALL,ANNULAR
25007
5962-01-240-9335INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
808093

Frequently Asked Questions

What is NSN 4730-01-307-8447?

NSN 4730-01-307-8447 is a Cup,grease, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-307-8447?

NSN 4730-01-307-8447 has 15 cross-referenced part numbers: 33891-A (Electric Boat Corporation Div General Dynamics Electric Boat), 3505-16 (Electric Boat Corp Dba Electro Dynamic), A-803455-0-01 (Electric Boat Corp Dba Electro Dynamic), 3505-16 ITEM 57 (Electric Boat Corp Dba Electro Dynamic), 2500-7 (Electric Boat Corp Dba Electro Dynamic) and 10 more.

What NSN replaces 4730-01-307-8447?

There are 12 known substitutes for 4730-01-307-8447: 4730-00-106-1743, 2915-00-110-5521, 4730-00-196-1541 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33891-A?

Key specifications for 33891-A: Surface Treatment: ZINC OVERALL; Material: STEEL OVERALL; Style Designator: STRAIGHT, CAP FEED; Criticality Code Justification: FEAT. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-307-8447 still in active supply?

NSN 4730-01-307-8447 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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