PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E21503X12X12Adapter,straight,pipe to Hose

United Technologies Automotive Inc Components Div · NSN 4730-00-542-4038 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-542-4038 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-542-4038. Primary manufacturer part number: E21503X12X12.
Features
  • Adapter,straight,pipe to Hose — FSC 4730
  • Thread Series Designator: NPT FIRST END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Connection Style: PLAIN (HOSE) SECOND END
  • Connection Type: THREADED EXTERNAL HOSE SECOND END
  • Connection Style: PLAIN (PIPE) FIRST END
  • Material: COPPER ALLOY OVERALL
  • Nominal Overall Length: 1.120 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Hose, cataloged under National Stock Number 4730-00-542-4038, 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 United Technologies Automotive Inc Components Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4730-00-542-4038
Primary Part NumberE21503X12X12
Item NameAdapter,straight,pipe to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUnited Technologies Automotive Inc Components Div
StatusACTIVE
Thread Series DesignatorNPT FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Connection StylePLAIN (HOSE) SECOND END
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Connection StylePLAIN (PIPE) FIRST END
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length1.120 INCHES IN
Thread Series DesignatorNH SECOND END
Nominal Thread Size0.750 INCHES ALL ENDS IN
Thread Quantity Per Inch11-1/2 SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-173-4334A649 INTERCHANGEABLE
Gasket
Essex Industries, Inc. Dba Essex Industries
5310-00-185-6463 INTERCHANGEABLE
Nut,plain,round
4930-00-222-10737216-4 INTERCHANGEABLE
Pump,lubricant Transfer
The Voto Manufacturers Sales Company Div Voto Manufacturers Sales Co, the
4510-00-235-4740 INTERCHANGEABLE
Dispenser,soap
5365-00-242-0002296 INTERCHANGEABLE
Bushing
Stothert & Pitt
1930-00-375-2992296 INTERCHANGEABLE
Barge,sand and Gravel
Us Army Aviation and Missile Command
4730-00-517-5333 INTERCHANGEABLE
Adapter,straight,pipe to Hose
4730-00-627-341810-20087-2 INTERCHANGEABLE
Expansion Joint,pipe
The Boeing Company Div Legacy Wichita
6145-00-669-6642 INTERCHANGEABLE
Wire,electrical
2940-00-756-851842378 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
Cross-Reference Index
Part NumberManufacturer
E21503X12X12 PRIMARY United Technologies Automotive Inc Components Div (USA)
296 Kidde Fire Fighting Inc Dba Kidde Fire Fighting Div Powhatan/automatic Sprinkler (USA)
Related Parts
5330-00-173-4334INTERCHANGEABLE
GASKET
A649
5310-00-185-6463INTERCHANGEABLE
NUT,PLAIN,ROUND
4930-00-222-1073INTERCHANGEABLE
PUMP,LUBRICANT TRANSFER
7216-4
4510-00-235-4740INTERCHANGEABLE
DISPENSER,SOAP
5365-00-242-0002INTERCHANGEABLE
BUSHING
296
1930-00-375-2992INTERCHANGEABLE
BARGE,SAND AND GRAVEL
296
4730-00-517-5333INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
4730-00-627-3418INTERCHANGEABLE
EXPANSION JOINT,PIPE
10-20087-2
6145-00-669-6642INTERCHANGEABLE
WIRE,ELECTRICAL
2940-00-756-8518INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42378
6610-00-886-4967INTERCHANGEABLE
AMPLIFIER,CONTROL I
296
6515-01-013-3911INTERCHANGEABLE
TIP,CRUTCH

Frequently Asked Questions

What is NSN 4730-00-542-4038?

NSN 4730-00-542-4038 is a Adapter,straight,pipe to Hose, manufactured by United Technologies Automotive Inc Components Div, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-542-4038?

NSN 4730-00-542-4038 has 2 cross-referenced part numbers: E21503X12X12 (United Technologies Automotive Inc Components Div), 296 (Kidde Fire Fighting Inc Dba Kidde Fire Fighting Div Powhatan/automatic Sprinkler).

What NSN replaces 4730-00-542-4038?

There are 12 known substitutes for 4730-00-542-4038: 5330-00-173-4334, 5310-00-185-6463, 4930-00-222-1073 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E21503X12X12?

Key specifications for E21503X12X12: End Item Identification: QDA TOPOGRAPHIC SUPPORT SYSTEM (TSS); Thread Series Designator: NPT FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END; Connection Style: PLAIN (HOSE) SECOND END. 11 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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