PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3J-5390Plug,pipe

Caterpillar Inc Div Caterpillar Defense · NSN 4730-00-427-5121 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-427-5121 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-427-5121. Primary manufacturer part number: 3J-5390.
Features
  • Plug,pipe — FSC 4730
  • 29 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Plug,pipe, cataloged under National Stock Number 4730-00-427-5121, 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 Caterpillar Inc Div Caterpillar Defense. This item has 29 commercial cross-references from 25 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NamePlug,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersDresser-Rand Co Ingersoll-Rand Opns a Joint Venture (CAGE 88663); Gse Management Co (CAGE 0EAK3); Hercules Engine Co Inc (CAGE 28265); Mil-Tech Mfg Inc (CAGE 58312); Parker-Hannifin Corp Div Fluid System Connector Division (CAGE 93061)
Technical Specifications
ParameterValue
NSN4730-00-427-5121
Primary Part Number3J-5390
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-012-1832121832 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
4820-00-018-63772388-07 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Howell Laboratories Inc Dba Howell Laboratories Inc
4310-00-148-5525107158PC151 INTERCHANGEABLE
Finger,unloader
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5330-00-153-467525016-17-12 INTERCHANGEABLE
Gasket
Hdt Expeditionary Systems Inc
3010-00-248-9553A1104141 INTERCHANGEABLE
Coupling,shaft,flexible
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
2040-00-997-0200 INTERCHANGEABLE
Wrench,special
3220-01-260-364834-761 INTERCHANGEABLE
Saw,circular,table Type
Delta Intl Machinery Corp
7035-01-328-7448PP38 INTERCHANGEABLE
Programmer,microcircuit
Stag Microsystems Inc
1510-01-342-1777P3C INTERCHANGEABLE
Airplane,observation
Lockheed Martin Corp
5920-01-508-5778PP38-18 INTERCHANGEABLE
Lightning Rod
Control Technology Inc Dba Control Technology
Cross-Reference Index
Part NumberManufacturer
PP3-8 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
SK-6008-8 Gse Management Co (USA)
127952 Hercules Engine Co Inc (USA)
3J5390 Mil-Tech Mfg Inc (USA)
218P-6 Parker-Hannifin Corp Div Fluid System Connector Division (USA)
53-4302-0002 Pierce Manufacturing Inc (USA)
E3152X6 Dana Corp Weatherhead Div (USA)
013591-03A0 Tld Wollard Llc (USA)
P3C Superior Valve Co (USA)
621N Anderson Brass Co (USA)
PP3-8 Ingersoll Rand Co (USA)
109XE SOLID Couplings Co Inc (USA)
SW26265 Drs Sustainment Systems Inc (USA)
44Z226D3 Morris Material Handling, Inc. (USA)
2082-6B Danfoss Power Solutions II, Llc (USA)
3J-5390 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
3J5390-00 Mil-Tech Mfg Inc (USA)
PP3-8 Siemens Energy, Inc. Dba Dresser-Rand (USA)
121832 Haulmark Trailers (australia) Pty Ltd (AUS)
3005918 PRIMARY General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
Related Parts
5305-00-012-1832INTERCHANGEABLE
SCREW,MACHINE
121832
4820-00-018-6377INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
2388-07
4310-00-148-5525INTERCHANGEABLE
FINGER,UNLOADER
107158PC151
5330-00-153-4675INTERCHANGEABLE
GASKET
25016-17-12
3010-00-248-9553INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
A1104141
2040-00-997-0200INTERCHANGEABLE
WRENCH,SPECIAL
3220-01-260-3648INTERCHANGEABLE
SAW,CIRCULAR,TABLE TYPE
34-761
7035-01-328-7448INTERCHANGEABLE
PROGRAMMER,MICROCIRCUIT
PP38
1510-01-342-1777INTERCHANGEABLE
AIRPLANE,OBSERVATION
P3C
5920-01-508-5778INTERCHANGEABLE
LIGHTNING ROD
PP38-18
4720-01-516-9516INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5305-01-570-6995INTERCHANGEABLE
SCREW,MACHINE
34771

Frequently Asked Questions

What is NSN 4730-00-427-5121?

NSN 4730-00-427-5121 is a Plug,pipe, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-427-5121?

NSN 4730-00-427-5121 has 29 cross-referenced part numbers: PP3-8 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), SK-6008-8 (Gse Management Co), 127952 (Hercules Engine Co Inc), 3J5390 (Mil-Tech Mfg Inc), 218P-6 (Parker-Hannifin Corp Div Fluid System Connector Division) and 24 more.

What NSN replaces 4730-00-427-5121?

There are 12 known substitutes for 4730-00-427-5121: 5305-00-012-1832, 4820-00-018-6377, 4310-00-148-5525 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-427-5121 still in active supply?

NSN 4730-00-427-5121 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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