PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1551AS294-5044Tee,pipe

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 4730-01-300-4118 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-300-4118 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-300-4118. Primary manufacturer part number: 1551AS294-5044.
Features
  • Tee,pipe — FSC 4730
  • Leg Length: 1.120 INCHES NOMINAL FIRST END IN
  • Leg Length: 1.120 INCHES NOMINAL SECOND END IN
  • Nominal Thread Size: 0.500 INCHES THIRD END IN
  • Connection Style: PLAIN (PIPE) FIRST END
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: THREADED INTERNAL PIPE THIRD END
  • Surface Treatment Document and Classification: QQ-P-416,TYPE2,CLASS2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Tee,pipe, cataloged under National Stock Number 4730-01-300-4118, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
ParameterValue
NSN4730-01-300-4118
Primary Part Number1551AS294-5044
Item NameTee,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Leg Length1.120 INCHES NOMINAL FIRST END IN
Leg Length1.120 INCHES NOMINAL SECOND END IN
Nominal Thread Size0.500 INCHES THIRD END IN
Connection StylePLAIN (PIPE) FIRST END
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED INTERNAL PIPE THIRD END
Surface Treatment Document and ClassificationQQ-P-416,TYPE2,CLASS2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorNPT SECOND END
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Nominal Thread Size0.500 INCHES SECOND END IN
Nominal Thread Size0.500 INCHES FIRST END IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Thread Series DesignatorNPT THIRD END
MaterialIRON OVERALL
Material Document and ClassificationWW-P-521 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Media for Which DesignedSTEAM FIRST RESPONSE
Connection StylePLAIN (PIPE) THIRD END
Leg Length1.120 INCHES NOMINAL THIRD END IN
Thread Series DesignatorNPT FIRST END
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-255-8257 INTERCHANGEABLE
Cross,pipe
4730-01-300-40931551AS294-2023 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-40941551AS294-2042 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-40951551AS294-2044 INTERCHANGEABLE
Elbow,pipe
Mission Systems Davenport Inc.
4730-01-300-40971551AS294-2054 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-40991551AS294-4022 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-41001551AS294-4042 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-41011551AS294-4054 INTERCHANGEABLE
Elbow,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-41151551AS294-5024 INTERCHANGEABLE
Tee,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4730-01-300-41161551AS294-7044 INTERCHANGEABLE
Tee,pipe
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
1551AS294-5X04 Flagg Stanley G & Co Inc Dba Flagg Brass (USA)
1551AS294 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
1551AS294-5044 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
4730-00-255-8257INTERCHANGEABLE
CROSS,PIPE
4730-01-300-4093INTERCHANGEABLE
ELBOW,PIPE
1551AS294-2023
4730-01-300-4094INTERCHANGEABLE
ELBOW,PIPE
1551AS294-2042
4730-01-300-4095INTERCHANGEABLE
ELBOW,PIPE
1551AS294-2044
4730-01-300-4097INTERCHANGEABLE
ELBOW,PIPE
1551AS294-2054
4730-01-300-4099INTERCHANGEABLE
ELBOW,PIPE
1551AS294-4022
4730-01-300-4100INTERCHANGEABLE
ELBOW,PIPE
1551AS294-4042
4730-01-300-4101INTERCHANGEABLE
ELBOW,PIPE
1551AS294-4054
4730-01-300-4115INTERCHANGEABLE
TEE,PIPE
1551AS294-5024
4730-01-300-4116INTERCHANGEABLE
TEE,PIPE
1551AS294-7044
4730-01-300-4117INTERCHANGEABLE
TEE,PIPE
1551AS294-5023
4730-01-300-4119INTERCHANGEABLE
TEE,PIPE
1551AS294-5052

Frequently Asked Questions

What is NSN 4730-01-300-4118?

NSN 4730-01-300-4118 is a Tee,pipe, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-300-4118?

NSN 4730-01-300-4118 has 3 cross-referenced part numbers: 1551AS294-5X04 (Flagg Stanley G & Co Inc Dba Flagg Brass), 1551AS294 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1551AS294-5044 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 4730-01-300-4118?

There are 12 known substitutes for 4730-01-300-4118: 4730-00-255-8257, 4730-01-300-4093, 4730-01-300-4094 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1551AS294-5044?

Key specifications for 1551AS294-5044: Leg Length: 1.120 INCHES NOMINAL FIRST END IN; Leg Length: 1.120 INCHES NOMINAL SECOND END IN; Nominal Thread Size: 0.500 INCHES THIRD END IN; Connection Style: PLAIN (PIPE) FIRST END. 24 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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