PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25020-1-TNCoupling,pipe

Rhba Acquisitions, Llc Dba Red Head Brass · NSN 4730-01-323-5089 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-323-5089 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-323-5089. Primary manufacturer part number: 25020-1-TN.
Features
  • Coupling,pipe — FSC 4730
  • Connection Style: PLAIN (PIPE) FIRST END
  • Nominal Pipe Size Accommodated: 4.000 INCHES SECOND END IN
  • Connection Style: GROOVED (PIPE) SECOND END
  • Nominal Thread Size: 4.000 INCHES FIRST END IN
  • Nominal Overall Length: 6.000 INCHES IN
  • Material: ALUMINUM ALLOY 356.0 OVERALL
  • Style Designator: GROOVED AND THREADED EXTERNAL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 356.0 Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-01-323-5089, 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 Rhba Acquisitions, Llc Dba Red Head Brass. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 7 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
NSN4730-01-323-5089
Primary Part Number25020-1-TN
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRhba Acquisitions, Llc Dba Red Head Brass
StatusACTIVE
Connection StylePLAIN (PIPE) FIRST END
Nominal Pipe Size Accommodated4.000 INCHES SECOND END IN
Connection StyleGROOVED (PIPE) SECOND END
Nominal Thread Size4.000 INCHES FIRST END IN
Nominal Overall Length6.000 INCHES IN
MaterialALUMINUM ALLOY 356.0 OVERALL
Style DesignatorGROOVED AND THREADED EXTERNAL
Surface TreatmentANODIZE OVERALL
Thread Series DesignatorNPTF FIRST END
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Connection TypeUNTHREADED EXTERNAL PIPE SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-300-753625020 INTERCHANGEABLE
Spring,valve
Hdt Expeditionary Systems Inc
4730-00-569-9649250-20 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Lenz Inc Dba the Lenz Company
2935-00-622-7640 INTERCHANGEABLE
Cooler,lubricating Oil,engine
6125-00-635-3770 INTERCHANGEABLE
Dynamotor-Power Supply
5999-00-734-4614SM-A-800712 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5905-00-853-3904 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5120-01-074-5211THD420L INTERCHANGEABLE
Inserter,screw Thread Insert
Howmet Global Fastening Systems Inc. Div Tridair Products
5950-01-113-506825020-1 INTERCHANGEABLE
Transformer,power
Drs Advanced Isr, Llc
6685-01-174-84172-5020 INTERCHANGEABLE
Gage,differential,dial Indicatin
Dwyer Instruments Inc
4730-01-178-0297 INTERCHANGEABLE
Coupling,pipe
Cross-Reference Index
Part NumberManufacturer
25020-1-TN PRIMARY Rhba Acquisitions, Llc Dba Red Head Brass (USA)
8837271-02 Hdt Expeditionary Systems Inc (USA)
8837271 Warner Robins Air Logistics Center (USA)
25020 Drs Environmental Systems Inc (USA)
NO.40X4 PRIMARY Victaulic Company of America Inc Dba Victaulic Company of America (USA)
25020-1 Drs Environmental Systems Inc (USA)
8837271-02 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
25020-1 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
25020-1 Hdt Expeditionary Systems Inc (USA)
FIG7081X4 Itt Grinnell Corp (USA)
25020-1-14 Rhba Acquisitions, Llc Dba Red Head Brass (USA)
8837271-02 Warner Robins Air Logistics Center (USA)
25020 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
8837271-02 Drs Environmental Systems Inc (USA)
Related Parts
5360-00-300-7536INTERCHANGEABLE
SPRING,VALVE
25020
4730-00-569-9649INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
250-20
2935-00-622-7640INTERCHANGEABLE
COOLER,LUBRICATING OIL,ENGINE
6125-00-635-3770INTERCHANGEABLE
DYNAMOTOR-POWER SUPPLY
5999-00-734-4614INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
SM-A-800712
5905-00-853-3904INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5120-01-074-5211INTERCHANGEABLE
INSERTER,SCREW THREAD INSERT
THD420L
5950-01-113-5068INTERCHANGEABLE
TRANSFORMER,POWER
25020-1
6685-01-174-8417INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
2-5020
4730-01-178-0297INTERCHANGEABLE
COUPLING,PIPE
4710-01-185-4480INTERCHANGEABLE
TUBE ASSEMBLY,METAL
8J4875
5360-01-224-4398INTERCHANGEABLE
SPRING

Frequently Asked Questions

What is NSN 4730-01-323-5089?

NSN 4730-01-323-5089 is a Coupling,pipe, manufactured by Rhba Acquisitions, Llc Dba Red Head Brass, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-323-5089?

NSN 4730-01-323-5089 has 14 cross-referenced part numbers: 25020-1-TN (Rhba Acquisitions, Llc Dba Red Head Brass), 8837271-02 (Hdt Expeditionary Systems Inc), 8837271 (Warner Robins Air Logistics Center), 25020 (Drs Environmental Systems Inc), NO.40X4 (Victaulic Company of America Inc Dba Victaulic Company of America) and 9 more.

What NSN replaces 4730-01-323-5089?

There are 12 known substitutes for 4730-01-323-5089: 5360-00-300-7536, 4730-00-569-9649, 2935-00-622-7640 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25020-1-TN?

Key specifications for 25020-1-TN: Connection Style: PLAIN (PIPE) FIRST END; Nominal Pipe Size Accommodated: 4.000 INCHES SECOND END IN; Connection Style: GROOVED (PIPE) SECOND END; Nominal Thread Size: 4.000 INCHES FIRST END IN. 12 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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