PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6620PRod,piston,pump

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-300-5998 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-300-5998 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-300-5998. Primary manufacturer part number: 6620P.
Features
  • Rod,piston,pump — FSC 4320
  • General Characteristics Item Description: 32-1/2 IN. LG; THD BOTH ENDS 1-3/8-10 CLASS 4 FIT 1-5/8 IN. LG; 1-1/8-12 CLASS 3 FIT 2-7/8 IN. LG; 1-7/16 IN. LARGEST OD IN
  • 7 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Rod,piston,pump, cataloged under National Stock Number 4320-00-300-5998, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 7 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
NSN4320-00-300-5998
Primary Part Number6620P
Item NameRod,piston,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
General Characteristics Item Description32-1/2 IN. LG; THD BOTH ENDS 1-3/8-10 CLASS 4 FIT 1-5/8 IN. LG; 1-1/8-12 CLASS 3 FIT 2-7/8 IN. LG; 1-7/16 IN. LARGEST OD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-086-1497 INTERCHANGEABLE
Angle,structural
9540-00-086-1498 INTERCHANGEABLE
Angle,structural
5999-00-138-8797 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5340-00-337-32271055-6 INTERCHANGEABLE
Bolt,chain
Stanley Black & Decker, Inc.
5360-00-388-7025 INTERCHANGEABLE
Spring,flat
5950-00-486-618610556 INTERCHANGEABLE
Transformer,power
Astronautics Corporation of America
5935-00-553-9080760916-2 INTERCHANGEABLE
Connector,plug,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5835-00-850-1475 INTERCHANGEABLE
Reel,magnetic Recording Tape
6625-01-053-6563 INTERCHANGEABLE
Lead,test
5305-01-329-3862 INTERCHANGEABLE
Setscrew
Cross-Reference Index
Part NumberManufacturer
10556 Rps-Fl, Inc. Dba Rps Inc (USA)
336533 Rps-Fl, Inc. Dba Rps Inc (USA)
SL5721PC33 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-78600 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
6620P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
6620P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5721PC33 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
9540-00-086-1497INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-086-1498INTERCHANGEABLE
ANGLE,STRUCTURAL
5999-00-138-8797INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5340-00-337-3227INTERCHANGEABLE
BOLT,CHAIN
1055-6
5360-00-388-7025INTERCHANGEABLE
SPRING,FLAT
5950-00-486-6186INTERCHANGEABLE
TRANSFORMER,POWER
10556
5935-00-553-9080INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
760916-2
5835-00-850-1475INTERCHANGEABLE
REEL,MAGNETIC RECORDING TAPE
6625-01-053-6563INTERCHANGEABLE
LEAD,TEST
5305-01-329-3862INTERCHANGEABLE
SETSCREW
4820-01-460-3548INTERCHANGEABLE
VALVE,SAFETY RELIEF
10556SP
5365-01-502-7641INTERCHANGEABLE
SPACER,SLEEVE
10-556

Frequently Asked Questions

What is NSN 4320-00-300-5998?

NSN 4320-00-300-5998 is a Rod,piston,pump, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-300-5998?

NSN 4320-00-300-5998 has 7 cross-referenced part numbers: 10556 (Rps-Fl, Inc. Dba Rps Inc), 336533 (Rps-Fl, Inc. Dba Rps Inc), SL5721PC33 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SK-78600 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 6620P (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 2 more.

What NSN replaces 4320-00-300-5998?

There are 12 known substitutes for 4320-00-300-5998: 9540-00-086-1497, 9540-00-086-1498, 5999-00-138-8797 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6620P?

Key specifications for 6620P: General Characteristics Item Description: 32-1/2 IN. LG; THD BOTH ENDS 1-3/8-10 CLASS 4 FIT 1-5/8 IN. LG; 1-1/8-12 CLASS 3 FIT 2-7/8 IN. LG; 1-7/16 IN. LARGEST OD IN. 1 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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