PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21662Diaphragm

Forenta Lp · NSN 3443-01-054-6575 · FSC 3443 · No Item Name Available
Verified by PartsTable
NSN 3443-01-054-6575 — this item is cataloged by the U.S. Government under National Stock Number 3443-01-054-6575. Primary manufacturer part number: 21662.
Features
  • Diaphragm — FSC 3443
  • 1 verified cross-reference
  • Primary manufacturer: Forenta Lp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm, cataloged under National Stock Number 3443-01-054-6575, is classified within Federal Supply Class 3443 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Forenta Lp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm
FSC / FSG3443 — No Item Name Available (FSG 34)
ManufacturersForenta Lp (CAGE 11023)
Technical Specifications
ParameterValue
NSN3443-01-054-6575
Primary Part Number21662
Item NameDiaphragm
FSC / FSG3443 / 34 — No Item Name Available
ManufacturerForenta Lp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-156-357610879 INTERCHANGEABLE
Bearing,ball,annular
Uniontools Inc
4320-00-163-107299121662 INTERCHANGEABLE
Pump,rotary
Alfa Laval Inc
5330-00-190-4227 INTERCHANGEABLE
Gasket
5945-00-354-2831 INTERCHANGEABLE
Armature,relay
6680-01-033-1161LS3003 INTERCHANGEABLE
Transmitter,liquid Quantity
Faria Beede Instruments, Inc. Dba Faria Beede Instruments Inc
5305-01-188-049121662 INTERCHANGEABLE
Screw Assy.,vent
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4420-01-287-7903EV298/1500-VV-3 INTERCHANGEABLE
Cooler,fluid,industrial
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5360-01-331-007221662 INTERCHANGEABLE
Spring,helical,compression
Parker Hannifin Corporation Div Hydraulic Systems Division
4720-01-434-7949 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
21662 PRIMARY Forenta Lp (USA)
Related Parts
3110-00-156-3576INTERCHANGEABLE
BEARING,BALL,ANNULAR
10879
4320-00-163-1072INTERCHANGEABLE
PUMP,ROTARY
99121662
5330-00-190-4227INTERCHANGEABLE
GASKET
5945-00-354-2831INTERCHANGEABLE
ARMATURE,RELAY
6680-01-033-1161INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
LS3003
5305-01-188-0491INTERCHANGEABLE
SCREW ASSY.,VENT
21662
4420-01-287-7903INTERCHANGEABLE
COOLER,FLUID,INDUSTRIAL
EV298/1500-VV-3
5360-01-331-0072INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21662
4720-01-434-7949INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 3443-01-054-6575?

NSN 3443-01-054-6575 is a Diaphragm, manufactured by Forenta Lp, classified under FSC 3443 (No Item Name Available). Status: active.

What are the part numbers for NSN 3443-01-054-6575?

NSN 3443-01-054-6575 has 1 cross-referenced part number: 21662 (Forenta Lp).

What NSN replaces 3443-01-054-6575?

There are 9 known substitutes for 3443-01-054-6575: 3110-00-156-3576, 4320-00-163-1072, 5330-00-190-4227 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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