Naval Ship Systems Command · NSN 3020-01-257-1559 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-257-1559 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-257-1559. Primary manufacturer part number: 501-4675698 ITEM 54.
3020-01-257-1559 — No Item Name Available illustration
Features
Gear,drive,vent Valve — FSC 3020
General Characteristics Item Description: NICKEL-COPPER; 18 TEETH; O/A OD 3.332 IN.; THK 1.750 IN. IN
5 verified cross-references
Primary manufacturer: Naval Ship Systems Command
Applications
Flow control in piping systems
Pressure regulation
Steam and fluid isolation
Power transmission and speed reduction
Rotary motion transfer
General Description
The Gear,drive,vent Valve, cataloged under National Stock Number 3020-01-257-1559, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 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
Parameter
Value
NSN
3020-01-257-1559
Primary Part Number
501-4675698 ITEM 54
Item Name
Gear,drive,vent Valve
FSC / FSG
3020 / 30 — No Item Name Available
Manufacturer
Naval Ship Systems Command
Status
ACTIVE
General Characteristics Item Description
NICKEL-COPPER; 18 TEETH; O/A OD 3.332 IN.; THK 1.750 IN. IN
NSN 3020-01-257-1559 is a Gear,drive,vent Valve, manufactured by Naval Ship Systems Command, classified under FSC 3020 (No Item Name Available). Status: active.
What are the part numbers for NSN 3020-01-257-1559?
NSN 3020-01-257-1559 has 5 cross-referenced part numbers: 501-4675698 (Naval Ship Systems Command), 87643-7504 ITEM 54 (Electric Boat Corporation Div General Dynamics Electric Boat), 87643-7504 (Electric Boat Corporation Div General Dynamics Electric Boat), 501-4675698 ITEM 54 (Naval Ship Systems Command), DM 47520 ITEM 5 (Electric Boat Corporation Div General Dynamics Electric Boat).
What NSN replaces 3020-01-257-1559?
There are 12 known substitutes for 3020-01-257-1559: 3020-01-096-2021, 4820-01-103-0157, 4820-01-103-0158 and 9 more. Verify interchangeability with system specifications before substitution.
What are the specifications of 501-4675698 ITEM 54?
Key specifications for 501-4675698 ITEM 54: End Item Identification: GENERAL DYNAMICS 13 IN. BHD VENT VALVE IN; General Characteristics Item Description: NICKEL-COPPER; 18 TEETH; O/A OD 3.332 IN.; THK 1.750 IN. IN. 2 total characteristics are documented in the Federal Logistics Information System.
✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.