PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403-00099-42Nipple,pipe

Kovatch Corp. · NSN 4730-01-104-6349 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-104-6349 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-104-6349. Primary manufacturer part number: 403-00099-42.
Features
  • Nipple,pipe — FSC 4730
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Thread Size: 1.500 INCHES ALL ENDS IN
  • Specification/standard Data: 96906-MS51953 GOVERNMENT STANDARD AND 81348-WW-N-351 GOVERNMENT SPECIFICATION
  • Material Document and Classification: ASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: LONG
  • Nominal Overall Length: 12.000 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-01-104-6349, 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 Kovatch Corp.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-104-6349
Primary Part Number403-00099-42
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKovatch Corp.
StatusCANCELLED
Connection StylePLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size1.500 INCHES ALL ENDS IN
Specification/standard Data96906-MS51953 GOVERNMENT STANDARD AND 81348-WW-N-351 GOVERNMENT SPECIFICATION
Material Document and ClassificationASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorLONG
Nominal Overall Length12.000 INCHES IN
Nondefinitive Spec/std Data3 TYPE
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-196-2364 INTERCHANGEABLE
Elbow,tube to Boss
2910-00-255-22560-10196 INTERCHANGEABLE
Carburetor,float
Zenith Fuel Systems Llc
4730-00-278-3534013-200 INTERCHANGEABLE
Nipple,pipe
Dresser Industries Inc Leroi Div
2990-01-484-9794216351 INTERCHANGEABLE
Adapter,flywheel Housing
Cadillac Gage Textron Inc.
5340-01-659-6585RCSN 200 GS INTERCHANGEABLE
Bracket,mounting
Cablofil Inc.
Cross-Reference Index
Part NumberManufacturer
403-00099-42 Kovatch Corp. (USA)
MS51953-184 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
WW-N-351 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
45-5600-015-120 Chief of Engineers Dept of Army (USA)
ASTM-A733 American Society for Testing and Materials Dba Astm International (USA)
403-00099-4 Kovatch Corp. (USA)
216351 General Motors Corp (USA)
A24757-20 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
013-200 Dresser Industries Inc Leroi Div (USA)
Related Parts
4730-00-196-2364INTERCHANGEABLE
ELBOW,TUBE TO BOSS
2910-00-255-2256INTERCHANGEABLE
CARBURETOR,FLOAT
0-10196
4730-00-278-3534INTERCHANGEABLE
NIPPLE,PIPE
013-200
2990-01-484-9794INTERCHANGEABLE
ADAPTER,FLYWHEEL HOUSING
216351
5340-01-659-6585INTERCHANGEABLE
BRACKET,MOUNTING
RCSN 200 GS

Frequently Asked Questions

What is NSN 4730-01-104-6349?

NSN 4730-01-104-6349 is a Nipple,pipe, manufactured by Kovatch Corp., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-104-6349?

NSN 4730-01-104-6349 has 9 cross-referenced part numbers: 403-00099-42 (Kovatch Corp.), MS51953-184 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), WW-N-351 (Federal Specifications Promulgated by General Services Administration Washington DC), 45-5600-015-120 (Chief of Engineers Dept of Army), ASTM-A733 (American Society for Testing and Materials Dba Astm International) and 4 more.

What NSN replaces 4730-01-104-6349?

There are 5 known substitutes for 4730-01-104-6349: 4730-00-196-2364, 2910-00-255-2256, 4730-00-278-3534 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 403-00099-42?

Key specifications for 403-00099-42: Connection Style: PLAIN (PIPE) ALL ENDS; Thread Series Designator: NPT ALL ENDS; Nominal Thread Size: 1.500 INCHES ALL ENDS IN; Specification/standard Data: 96906-MS51953 GOVERNMENT STANDARD AND 81348-WW-N-351 GOVERNMENT SPECIFICATION. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-104-6349 still in active supply?

NSN 4730-01-104-6349 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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