PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-10-8Elbow,tube to Boss

Formrite Tube Co · NSN 4730-00-489-8198 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-489-8198 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-489-8198. Primary manufacturer part number: 66-10-8.
Features
  • Elbow,tube to Boss — FSC 4730
  • Material: STEEL OVERALL
  • Connection Style: FLARED (TUBE) FIRST END
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
  • Flow Angle: 90.0 DEGREES
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Thread Series Designator: UNF FIRST END
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,tube to Boss, cataloged under National Stock Number 4730-00-489-8198, 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 Formrite Tube Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-489-8198
Primary Part Number66-10-8
Item NameElbow,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFormrite Tube Co
StatusCANCELLED
MaterialSTEEL OVERALL
Connection StyleFLARED (TUBE) FIRST END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Flow Angle90.0 DEGREES
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Series DesignatorUNF FIRST END
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
Leg Length1.520 INCHES NOMINAL SECOND END IN
Leg Length1.440 INCHES NOMINAL FIRST END IN
Thread Series DesignatorUNF SECOND END
Nominal Thread Size0.750 INCHES SECOND END IN
Thread Class2A FIRST END A
Surface TreatmentCADMIUM OVERALL
Seat Angle37.0 DEGREES FIRST END
Thread Class2A SECOND END A
Nominal Thread Size0.875 INCHES FIRST END IN
Furnished Items and Quantity1 LOCKNUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
9905-00-140-30211-7-19-7 INTERCHANGEABLE
Plate,instruction
Celtech Corporation Div Use CAGE 65552 for All Orders
5950-00-270-3411989110-10B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5950-00-409-7368LS10051-1 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corp
5950-00-538-3839718899-032 INTERCHANGEABLE
Reactor
Raytheon Company Div Rmd Strategic
5305-00-823-468053A68B283 INTERCHANGEABLE
Screw,machine
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-01-048-117366108 INTERCHANGEABLE
Gasket
L3harris Technologies, Inc Div Space & Airborne Systems
3020-01-253-741317197-1 INTERCHANGEABLE
Guard,mechanical Drive
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
2530-01-370-272317197 INTERCHANGEABLE
Hub,wheel,vehicular
Lift Truck Service Co
5210-01-471-4987714MEAAFLZ INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
Cross-Reference Index
Part NumberManufacturer
10-8SA6 Jm Fittings, Llc Dba L & L Fittings Mfg (USA)
10-8BCAC Contitech Usa, Inc. (USA)
3009194 General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
17197 Hyster-Yale Group, Inc. (USA)
10-8C50X-S Parker Hannifin Canada Div Fluid Connectors Canada (CAN)
66-10-8 PRIMARY Formrite Tube Co (USA)
44Z421D20 Morris Material Handling, Inc. (USA)
10-8BCAC Anchor Swan Corp Sub of Amerace Corp (USA)
17197 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
10-8SA6 L and L Mfg Co (USA)
Related Parts
9905-00-140-3021INTERCHANGEABLE
PLATE,INSTRUCTION
1-7-19-7
5950-00-270-3411INTERCHANGEABLE
COIL,RADIO FREQUENCY
989110-10B
5950-00-409-7368INTERCHANGEABLE
TRANSFORMER,POWER
LS10051-1
5950-00-538-3839INTERCHANGEABLE
REACTOR
718899-032
5305-00-823-4680INTERCHANGEABLE
SCREW,MACHINE
53A68B283
5330-01-048-1173INTERCHANGEABLE
GASKET
66108
3020-01-253-7413INTERCHANGEABLE
GUARD,MECHANICAL DRIVE
17197-1
2530-01-370-2723INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
17197
5210-01-471-4987INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
714MEAAFLZ

Frequently Asked Questions

What is NSN 4730-00-489-8198?

NSN 4730-00-489-8198 is a Elbow,tube to Boss, manufactured by Formrite Tube Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-489-8198?

NSN 4730-00-489-8198 has 10 cross-referenced part numbers: 10-8SA6 (Jm Fittings, Llc Dba L & L Fittings Mfg), 10-8BCAC (Contitech Usa, Inc.), 3009194 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 17197 (Hyster-Yale Group, Inc.), 10-8C50X-S (Parker Hannifin Canada Div Fluid Connectors Canada) and 5 more.

What NSN replaces 4730-00-489-8198?

There are 9 known substitutes for 4730-00-489-8198: 9905-00-140-3021, 5950-00-270-3411, 5950-00-409-7368 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-10-8?

Key specifications for 66-10-8: Material: STEEL OVERALL; Connection Style: FLARED (TUBE) FIRST END; Connection Type: THREADED EXTERNAL BOSS SECOND END; Flow Angle: 90.0 DEGREES. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-489-8198 still in active supply?

NSN 4730-00-489-8198 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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