PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

704-2 3-4X1Adapter,straight,pipe to Tube

Nibco Inc · NSN 4730-00-899-2013 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-899-2013 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-899-2013. Primary manufacturer part number: 704-2 3-4X1.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Thread Series Designator: NPT SECOND END
  • Connection Style: PLAIN (PIPE) SECOND END
  • Nominal Thread Size: 1.000 INCHES SECOND END IN
  • Nominal Overall Length: 2.000 INCHES IN
  • Tubing Wall Nominal Thickness for Which Designed: 0.045 INCHES FIRST END IN
  • Connection Type: UNTHREADED EXTERNAL TUBE FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.875 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-899-2013, 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 Nibco Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-899-2013
Primary Part Number704-2 3-4X1
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNibco Inc
StatusACTIVE
Thread Series DesignatorNPT SECOND END
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size1.000 INCHES SECOND END IN
Nominal Overall Length2.000 INCHES IN
Tubing Wall Nominal Thickness for Which Designed0.045 INCHES FIRST END IN
Connection TypeUNTHREADED EXTERNAL TUBE FIRST END
Nominal Outside Diameter Tube Accommodated0.875 INCHES FIRST END IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY OD OF TUBE AND PIPE SIZE REQUIREMENTS
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StylePLAIN (TUBE) FIRST END
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5930-00-024-0831 INTERCHANGEABLE
Switch,toggle
4130-00-262-7148 INTERCHANGEABLE
Filter-Drier,refrigerant
3020-00-448-13927042 INTERCHANGEABLE
Gear,bevel
Telemechanics Inc
5342-00-631-599570-4-2 INTERCHANGEABLE
Escutcheon,plate
Trailmobile Inc Sub of the Pullman Co
5355-00-727-287070-4-2 INTERCHANGEABLE
Knob
Electronic Hardware Corp Panel Products Div
4820-00-780-8364 INTERCHANGEABLE
Valve,gate
5340-01-085-684070-4-2 INTERCHANGEABLE
Escutcheon Plate
Truck Cab Mfrs Inc
6515-01-148-24357042 INTERCHANGEABLE
Tube,surgical Wound Evacuator
Davol Inc
4730-01-489-556570-4-2 INTERCHANGEABLE
Elbow,pipe to Tube
Rotaryaire Compressor Corp
5925-01-580-7207 INTERCHANGEABLE
Circuit Breaker
Cross-Reference Index
Part NumberManufacturer
704-2 3-4X1 Nibco Inc (USA)
704-2 Nibco Inc (USA)
Related Parts
5930-00-024-0831INTERCHANGEABLE
SWITCH,TOGGLE
4130-00-262-7148INTERCHANGEABLE
FILTER-DRIER,REFRIGERANT
3020-00-448-1392INTERCHANGEABLE
GEAR,BEVEL
7042
5342-00-631-5995INTERCHANGEABLE
ESCUTCHEON,PLATE
70-4-2
5355-00-727-2870INTERCHANGEABLE
KNOB
70-4-2
4820-00-780-8364INTERCHANGEABLE
VALVE,GATE
5340-01-085-6840INTERCHANGEABLE
ESCUTCHEON PLATE
70-4-2
6515-01-148-2435INTERCHANGEABLE
TUBE,SURGICAL WOUND EVACUATOR
7042
4730-01-489-5565INTERCHANGEABLE
ELBOW,PIPE TO TUBE
70-4-2
5925-01-580-7207INTERCHANGEABLE
CIRCUIT BREAKER
3920-01-673-4395INTERCHANGEABLE
TRUCK,HAND
7042

Frequently Asked Questions

What is NSN 4730-00-899-2013?

NSN 4730-00-899-2013 is a Adapter,straight,pipe to Tube, manufactured by Nibco Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-899-2013?

NSN 4730-00-899-2013 has 2 cross-referenced part numbers: 704-2 3-4X1 (Nibco Inc), 704-2 (Nibco Inc).

What NSN replaces 4730-00-899-2013?

There are 11 known substitutes for 4730-00-899-2013: 5930-00-024-0831, 4130-00-262-7148, 3020-00-448-1392 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 704-2 3-4X1?

Key specifications for 704-2 3-4X1: Thread Series Designator: NPT SECOND END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Thread Size: 1.000 INCHES SECOND END IN; Nominal Overall Length: 2.000 INCHES IN. 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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