PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8666Adapter,straight,pipe to Tube

Danuser Machine Co · NSN 4730-00-622-5843 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-622-5843 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-622-5843. Primary manufacturer part number: 8666.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Surface Treatment: CADMIUM OUTSIDE
  • Seat Angle: 37.0 DEGREES FIRST END
  • Nominal Thread Size: 1.062 INCHES FIRST END IN
  • Material: STEEL OVERALL
  • Thread Series Designator: NPTF SECOND END
  • Nominal Thread Size: 0.750 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 4730-00-622-5843, 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 Danuser Machine Co. Government technical data includes 14 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-622-5843
Primary Part Number8666
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanuser Machine Co
StatusACTIVE
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Surface TreatmentCADMIUM OUTSIDE
Seat Angle37.0 DEGREES FIRST END
Nominal Thread Size1.062 INCHES FIRST END IN
MaterialSTEEL OVERALL
Thread Series DesignatorNPTF SECOND END
Nominal Thread Size0.750 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Connection StyleFLARED (TUBE) FIRST END
Thread Series DesignatorUNF FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Overall Length1.660 INCHES IN
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Thread Class3A FIRST END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1680-00-529-8264963882-841 INTERCHANGEABLE
Liner,free Fall Chute
I.m.p Group Limited Div Aerospace
6850-00-570-936010-8666 INTERCHANGEABLE
Cleaning and Lubricating Compoun
Gc/waldom Inc
6240-00-906-40628666 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5310-01-056-21748666 INTERCHANGEABLE
Nut,plain,round
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4820-01-270-2445S15F-3 4IN AND 8666 INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
4820-01-270-25158666 4IN FIG.S15F-3 ITEM 4 INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-270-25698666 ITEM 3 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
4820-01-270-96438666 ITEM 5 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
8666 PRIMARY Danuser Machine Co (USA)
Related Parts
1680-00-529-8264INTERCHANGEABLE
LINER,FREE FALL CHUTE
963882-841
6850-00-570-9360INTERCHANGEABLE
CLEANING AND LUBRICATING COMPOUN
10-8666
6240-00-906-4062INTERCHANGEABLE
LAMP,INCANDESCENT
8666
5310-01-056-2174INTERCHANGEABLE
NUT,PLAIN,ROUND
8666
4820-01-270-2445INTERCHANGEABLE
VALVE,GATE
S15F-3 4IN AND 8666
4820-01-270-2515INTERCHANGEABLE
STEM,FLUID VALVE
8666 4IN FIG.S15F-3 ITEM 4
4820-01-270-2569INTERCHANGEABLE
DISK,VALVE
8666 ITEM 3
4820-01-270-9643INTERCHANGEABLE
SEAT,VALVE
8666 ITEM 5

Frequently Asked Questions

What is NSN 4730-00-622-5843?

NSN 4730-00-622-5843 is a Adapter,straight,pipe to Tube, manufactured by Danuser Machine Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-622-5843?

NSN 4730-00-622-5843 has 1 cross-referenced part number: 8666 (Danuser Machine Co).

What NSN replaces 4730-00-622-5843?

There are 8 known substitutes for 4730-00-622-5843: 1680-00-529-8264, 6850-00-570-9360, 6240-00-906-4062 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8666?

Key specifications for 8666: Connection Type: THREADED EXTERNAL TUBE FIRST END; Surface Treatment: CADMIUM OUTSIDE; Seat Angle: 37.0 DEGREES FIRST END; Nominal Thread Size: 1.062 INCHES FIRST END IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com