PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

69542Adapter,straight,pipe to Tube

Mine Safety Appliances Company · NSN 4730-00-239-5791 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-239-5791 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-239-5791. Primary manufacturer part number: 69542.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Thread Series Designator: UNF FIRST END
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN
  • Thread Class: 3A FIRST END A
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-239-5791, 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 Mine Safety Appliances Company. Government technical data includes 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-239-5791
Primary Part Number69542
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.250 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Nominal Pipe Size Accommodated0.250 INCHES SECOND END IN
Thread Class3A FIRST END A
Nominal Thread Size0.750 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-00-079-5958 INTERCHANGEABLE
Semiconductor Device,thyristor
4320-00-482-850269542 INTERCHANGEABLE
Connector,fluid,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
5310-01-082-6628 INTERCHANGEABLE
Washer,flat
5977-01-373-786069542 INTERCHANGEABLE
Holder,electrical Contact Brush
Wampfler, Inc.
6220-01-586-52106954-2 INTERCHANGEABLE
Light,navigational,aircraft
Luminescent Systems, Inc. Dba Lsi Div Lsi-Nh
Cross-Reference Index
Part NumberManufacturer
69542 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
5961-00-079-5958INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
4320-00-482-8502INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
69542
5310-01-082-6628INTERCHANGEABLE
WASHER,FLAT
5977-01-373-7860INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
69542
6220-01-586-5210INTERCHANGEABLE
LIGHT,NAVIGATIONAL,AIRCRAFT
6954-2

Frequently Asked Questions

What is NSN 4730-00-239-5791?

NSN 4730-00-239-5791 is a Adapter,straight,pipe to Tube, manufactured by Mine Safety Appliances Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-239-5791?

NSN 4730-00-239-5791 has 1 cross-referenced part number: 69542 (Mine Safety Appliances Company).

What NSN replaces 4730-00-239-5791?

There are 5 known substitutes for 4730-00-239-5791: 5961-00-079-5958, 4320-00-482-8502, 5310-01-082-6628 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 69542?

Key specifications for 69542: Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED EXTERNAL PIPE SECOND END; Thread Series Designator: UNF FIRST END; Nominal Thread Size: 0.250 INCHES SECOND END IN. 9 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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