PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221204Adapter,straight,pipe to Tube

Haldex Brake Products Corporation · NSN 4730-00-997-4369 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-997-4369 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-997-4369. Primary manufacturer part number: 221204.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Thread Class: 2A FIRST END A
  • Material: STEEL OVERALL
  • Furnished Items and Quantity: 1 LOCK WASHER AND 1 TUBE COUPLING NUT
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Thread Series Designator: UNF FIRST END
  • Connection Style: PLAIN (TUBE) FIRST END
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-997-4369, 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 Haldex Brake Products Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-997-4369
Primary Part Number221204
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHaldex Brake Products Corporation
StatusACTIVE
Thread Class2A FIRST END A
MaterialSTEEL OVERALL
Furnished Items and Quantity1 LOCK WASHER AND 1 TUBE COUPLING NUT
Nominal Thread Size0.750 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Connection StylePLAIN (TUBE) FIRST END
Nominal Thread Size0.250 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL PIPE SECOND END
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Connection StylePLAIN (PIPE) SECOND END
Thread Series DesignatorNPT SECOND END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Overall Length0.938 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-278-6318221204N INTERCHANGEABLE
Coupling,pipe
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
6515-01-236-084822-1204 INTERCHANGEABLE
Forceps,eye,coagulator
Mentor O and O Inc
4730-01-504-1527221204N INTERCHANGEABLE
Coupling,pipe
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
Cross-Reference Index
Part NumberManufacturer
221204 Haldex Brake Products Corporation (USA)
Related Parts
4730-00-278-6318INTERCHANGEABLE
COUPLING,PIPE
221204N
6515-01-236-0848INTERCHANGEABLE
FORCEPS,EYE,COAGULATOR
22-1204
4730-01-504-1527INTERCHANGEABLE
COUPLING,PIPE
221204N

Frequently Asked Questions

What is NSN 4730-00-997-4369?

NSN 4730-00-997-4369 is a Adapter,straight,pipe to Tube, manufactured by Haldex Brake Products Corporation, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-997-4369?

NSN 4730-00-997-4369 has 1 cross-referenced part number: 221204 (Haldex Brake Products Corporation).

What NSN replaces 4730-00-997-4369?

There are 3 known substitutes for 4730-00-997-4369: 4730-00-278-6318, 6515-01-236-0848, 4730-01-504-1527. Verify interchangeability with system specifications before substitution.

What are the specifications of 221204?

Key specifications for 221204: Thread Class: 2A FIRST END A; Material: STEEL OVERALL; Furnished Items and Quantity: 1 LOCK WASHER AND 1 TUBE COUPLING NUT; Nominal Thread Size: 0.750 INCHES FIRST END IN. 13 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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