PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y25-3Coupling Half,self-Sealing

Bosch Automotive Service Solutions Inc. · NSN 4730-01-241-6617 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-241-6617 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-241-6617. Primary manufacturer part number: Y25-3.
Features
  • Coupling Half,self-Sealing — FSC 4730
  • Style Designator: MALE COUPLING HALF
  • Connection Style: PLAIN ALL ENDS
  • Material: STEEL BODY
  • Thread Series Designator: NPTF ALL ENDS
  • Nominal Thread Size: 0.375 INCHES ALL ENDS IN
  • Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
  • Surface Treatment: CADMIUM BODY
Applications
  • Applications requiring Steel Body construction
General Description

The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-241-6617, 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 Bosch Automotive Service Solutions Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-241-6617
Primary Part NumberY25-3
Item NameCoupling Half,self-Sealing
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerBosch Automotive Service Solutions Inc.
StatusCANCELLED
Style DesignatorMALE COUPLING HALF
Connection StylePLAIN ALL ENDS
MaterialSTEEL BODY
Thread Series DesignatorNPTF ALL ENDS
Nominal Thread Size0.375 INCHES ALL ENDS IN
Connection TypeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
Surface TreatmentCADMIUM BODY
Features ProvidedSAFETY LOCKING FEATURE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
1630-00-130-917597-98 INTERCHANGEABLE
Weight,wheel Balancing
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
4820-00-430-3710918-80-4-09798-00 INTERCHANGEABLE
Seat,valve
Cashco Inc
4730-00-930-6690 INTERCHANGEABLE
Coupling Half,self-Sealing
5340-01-036-8908 INTERCHANGEABLE
Catch,magnetic
4730-01-241-4646 INTERCHANGEABLE
Tee,pipe
4720-01-241-5491 INTERCHANGEABLE
Hose Assembly,nonmetallic
6105-01-345-97039798 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5340-01-538-20069798 INTERCHANGEABLE
Hook,latch,aircraft
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
6515-01-599-2297 INTERCHANGEABLE
Filter,oxygen Delivery System
Cross-Reference Index
Part NumberManufacturer
Y25-3 Bosch Automotive Service Solutions Inc. (USA)
ST49D5 Lockheed Martin Corp (USA)
123473-1 L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
C38H Bosch Automotive Service Solutions Inc. (USA)
9798 Bosch Automotive Service Solutions Inc. (USA)
ST49D5-6 Lockheed Martin Corp (USA)
Related Parts
1630-00-130-9175INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
97-98
4820-00-430-3710INTERCHANGEABLE
SEAT,VALVE
918-80-4-09798-00
4730-00-930-6690INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
5340-01-036-8908INTERCHANGEABLE
CATCH,MAGNETIC
4730-01-241-4646INTERCHANGEABLE
TEE,PIPE
4720-01-241-5491INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
6105-01-345-9703INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9798
5340-01-538-2006INTERCHANGEABLE
HOOK,LATCH,AIRCRAFT
9798
6515-01-599-2297INTERCHANGEABLE
FILTER,OXYGEN DELIVERY SYSTEM

Frequently Asked Questions

What is NSN 4730-01-241-6617?

NSN 4730-01-241-6617 is a Coupling Half,self-Sealing, manufactured by Bosch Automotive Service Solutions Inc., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-241-6617?

NSN 4730-01-241-6617 has 6 cross-referenced part numbers: Y25-3 (Bosch Automotive Service Solutions Inc.), ST49D5 (Lockheed Martin Corp), 123473-1 (L3harris Technologies, Inc. Div Space and Airborne Systems), C38H (Bosch Automotive Service Solutions Inc.), 9798 (Bosch Automotive Service Solutions Inc.) and 1 more.

What NSN replaces 4730-01-241-6617?

There are 9 known substitutes for 4730-01-241-6617: 1630-00-130-9175, 4820-00-430-3710, 4730-00-930-6690 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of Y25-3?

Key specifications for Y25-3: Overall Length: 1.540 INCHES NOMINAL IN; Style Designator: MALE COUPLING HALF; Connection Style: PLAIN ALL ENDS; Material: STEEL BODY. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-241-6617 still in active supply?

NSN 4730-01-241-6617 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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