PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

350-TSE01-25Seal Nut,pipe

Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division · NSN 4730-00-670-6031 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-670-6031 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-670-6031. Primary manufacturer part number: 350-TSE01-25.
Features
  • Seal Nut,pipe — FSC 4730
  • Thread Series: NPSL
  • Nut Style: PIPE SEAL NUT
  • Thread Quantity Per Inch: 18
  • Nut Height: 0.266 INCHES NOMINAL IN
  • Nominal Thread Size: 0.250 INCHES IN
  • Width Across Flats: 0.750 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
General Description

The Seal Nut,pipe, cataloged under National Stock Number 4730-00-670-6031, 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 Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-670-6031
Primary Part Number350-TSE01-25
Item NameSeal Nut,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker Hannifin Corporation Dba Pneutronics Div Cylinder Division
StatusCANCELLED
Thread SeriesNPSL
Nut StylePIPE SEAL NUT
Thread Quantity Per Inch18
Nut Height0.266 INCHES NOMINAL IN
Nominal Thread Size0.250 INCHES IN
Width Across Flats0.750 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 12L14 OVERALL
Supplementary FeaturesMATERIAL: STEEL, CARBON 12L14, CONDITION OPTIONAL, SPEC ASTM A108
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Special Test FeaturesWORKING PRESSURE RANGE FROM VACUUM (10 TO THE POWER OF -5 MICRONS) TO 5000PSI MINIMUM; FLUID MEDIA RANGE: ALL FLUID MEDIA EXCEPT HYDROFLOURIDE GAS, MOLTEN ALKALINE METALS, CHLORINE TRI-FLOURIDE OR ATOMIC RADIATION
Specification/standard Data96906-DOD-STD-00100 GOVERNMENT STANDARD AND 80204-ANSI Y14.5M-1982 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4730-00-190-4962 INTERCHANGEABLE
Seal Nut,pipe
4730-00-531-5499 INTERCHANGEABLE
Locknut,pipe
4730-00-670-6033 INTERCHANGEABLE
Seal Nut,pipe
4730-00-678-6165350-TSE01-38 INTERCHANGEABLE
Locknut,pipe
Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division
4730-00-813-72622600Z-1 INTERCHANGEABLE
Seal Nut,pipe
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4730-00-832-5670 INTERCHANGEABLE
Locknut,pipe
Cross-Reference Index
Part NumberManufacturer
1787777-2 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
4730006706031 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
283569R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
8764824 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
8764823 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
350-TSE01-25 PRIMARY Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division (USA)
350-TSE01-25 Parker-Hannifin Corporation Div Cylinder Division (USA)
202-22003-4 Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA)
B122-4P2 Parker-Hannifin Corporation Div Cylinder Division (USA)
1851539 Naval Ship Systems Command (USA)
BUWEPSDWG1533922 Navsurfwarcen Det Picatinny (USA)
Related Parts
4730-00-190-4962INTERCHANGEABLE
SEAL NUT,PIPE
4730-00-531-5499INTERCHANGEABLE
LOCKNUT,PIPE
4730-00-670-6033INTERCHANGEABLE
SEAL NUT,PIPE
4730-00-678-6165INTERCHANGEABLE
LOCKNUT,PIPE
350-TSE01-38
4730-00-813-7262INTERCHANGEABLE
SEAL NUT,PIPE
2600Z-1
4730-00-832-5670INTERCHANGEABLE
LOCKNUT,PIPE

Frequently Asked Questions

What is NSN 4730-00-670-6031?

NSN 4730-00-670-6031 is a Seal Nut,pipe, manufactured by Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-670-6031?

NSN 4730-00-670-6031 has 11 cross-referenced part numbers: 1787777-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 4730006706031 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 283569R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 8764824 (U S Army Tank Automotive Command Amsta-Im-Mm), 8764823 (U S Army Tank Automotive Command Amsta-Im-Mm) and 6 more.

What NSN replaces 4730-00-670-6031?

There are 6 known substitutes for 4730-00-670-6031: 4730-00-190-4962, 4730-00-531-5499, 4730-00-670-6033 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 350-TSE01-25?

Key specifications for 350-TSE01-25: Thread Series: NPSL; Nut Style: PIPE SEAL NUT; Thread Quantity Per Inch: 18; Nut Height: 0.266 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-670-6031 still in active supply?

NSN 4730-00-670-6031 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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