PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-8Elbow,tube to Boss

Tbg Inc Peerless Pump Div · NSN 4730-01-048-6031 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-048-6031 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-048-6031. Primary manufacturer part number: 66-8.
Features
  • Elbow,tube to Boss — FSC 4730
  • Thread Series Designator: UNF SECOND END
  • Flow Angle: 90.0 DEGREES
  • Thread Class: 2A FIRST END A
  • Thread Series Designator: UNF FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Furnished Items and Quantity: 1 TUBE COUPLING NUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER
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 4730-01-048-6031, 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 Tbg Inc Peerless Pump Div. Government technical data includes 17 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-048-6031
Primary Part Number66-8
Item NameElbow,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTbg Inc Peerless Pump Div
StatusACTIVE
Thread Series DesignatorUNF SECOND END
Flow Angle90.0 DEGREES
Thread Class2A FIRST END A
Thread Series DesignatorUNF FIRST END
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Nominal Thread Size0.750 INCHES FIRST END IN
Furnished Items and Quantity1 TUBE COUPLING NUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER
Leg Length1.438 INCHES NOMINAL SECOND END IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Seat Angle37.0 DEGREES FIRST END
MaterialSTEEL OVERALL
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Nominal Thread Size0.750 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Connection StyleFLARED (TUBE) FIRST END
Leg Length1.125 INCHES NOMINAL FIRST END IN
Thread Class2A SECOND END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-080-2886 INTERCHANGEABLE
Packing Assembly
3030-00-104-87972S8727 INTERCHANGEABLE
Belt,v
Caterpillar Inc Div Caterpillar Defense
5950-00-136-5433668 INTERCHANGEABLE
Coil,radio Frequency
Mpe Ltd
6240-00-283-0147 INTERCHANGEABLE
Lamp,incandescent
5330-00-286-994020232 INTERCHANGEABLE
Seal,plain Encased
The Crosby Group Llc Dba the Crosby Group
8415-00-324-7691668 INTERCHANGEABLE
Eyeshield Assy
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5360-00-383-9967FC668 INTERCHANGEABLE
Spring,helical,compression
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5365-00-414-429181-000319 INTERCHANGEABLE
Spacer,sleeve
Orscheln Products Llc
5120-00-473-7371 INTERCHANGEABLE
Remover and Replace
6625-00-993-3169668 INTERCHANGEABLE
Ammeter
Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc
Cross-Reference Index
Part NumberManufacturer
66-8 Tbg Inc Peerless Pump Div (USA)
Related Parts
5330-00-080-2886INTERCHANGEABLE
PACKING ASSEMBLY
3030-00-104-8797INTERCHANGEABLE
BELT,V
2S8727
5950-00-136-5433INTERCHANGEABLE
COIL,RADIO FREQUENCY
668
6240-00-283-0147INTERCHANGEABLE
LAMP,INCANDESCENT
5330-00-286-9940INTERCHANGEABLE
SEAL,PLAIN ENCASED
20232
8415-00-324-7691INTERCHANGEABLE
EYESHIELD ASSY
668
5360-00-383-9967INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
FC668
5365-00-414-4291INTERCHANGEABLE
SPACER,SLEEVE
81-000319
5120-00-473-7371INTERCHANGEABLE
REMOVER AND REPLACE
6625-00-993-3169INTERCHANGEABLE
AMMETER
668
3455-01-064-8949INTERCHANGEABLE
CUTTER,MILLING,END
42609
6550-01-211-4779INTERCHANGEABLE
INTESTINAL PROTOZOA STAINING KIT
6680

Frequently Asked Questions

What is NSN 4730-01-048-6031?

NSN 4730-01-048-6031 is a Elbow,tube to Boss, manufactured by Tbg Inc Peerless Pump Div, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-048-6031?

NSN 4730-01-048-6031 has 1 cross-referenced part number: 66-8 (Tbg Inc Peerless Pump Div).

What NSN replaces 4730-01-048-6031?

There are 12 known substitutes for 4730-01-048-6031: 5330-00-080-2886, 3030-00-104-8797, 5950-00-136-5433 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-8?

Key specifications for 66-8: Thread Series Designator: UNF SECOND END; Flow Angle: 90.0 DEGREES; Thread Class: 2A FIRST END A; Thread Series Designator: UNF FIRST END. 17 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