PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

806Elbow,tube

Nibco Inc · NSN 4730-00-878-3204 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-878-3204 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-878-3204. Primary manufacturer part number: 806.
Features
  • Elbow,tube — FSC 4730
  • Connection Style: SOCKET (TUBE) FIRST END
  • Flow Angle: 45.0 DEGREES
  • Nominal Outside Diameter Tube Accommodated: 2.125 INCHES FIRST END IN
  • Connection Type: UNTHREADED INTERNAL TUBE FIRST END
  • Material: COPPER ALLOY OVERALL
  • Tubing Wall Nominal Thickness for Which Designed: 0.070 INCHES FIRST END IN
  • Leg Length: 1.562 INCHES NOMINAL FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,tube, cataloged under National Stock Number 4730-00-878-3204, 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 Nibco Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN4730-00-878-3204
Primary Part Number806
Item NameElbow,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNibco Inc
StatusACTIVE
Connection StyleSOCKET (TUBE) FIRST END
Flow Angle45.0 DEGREES
Nominal Outside Diameter Tube Accommodated2.125 INCHES FIRST END IN
Connection TypeUNTHREADED INTERNAL TUBE FIRST END
MaterialCOPPER ALLOY OVERALL
Tubing Wall Nominal Thickness for Which Designed0.070 INCHES FIRST END IN
Leg Length1.562 INCHES NOMINAL FIRST END IN
Departure From Cited DocumentAS MODIFIED BY TUBING WALL THICKNESS FOR WHICH DESIGNED FROM FED STD 146
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-270-3886 INTERCHANGEABLE
Nut,slip Joint
4730-00-270-3889 INTERCHANGEABLE
Nut,slip Joint
4730-00-270-38914730002703891 INTERCHANGEABLE
Nut,slip Joint
Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc
4730-00-270-3892 INTERCHANGEABLE
Nut,slip Joint
4730-00-270-3895 INTERCHANGEABLE
Nut,slip Joint
4730-00-304-3481 INTERCHANGEABLE
Coupling,pipe
4510-00-305-7949HST05LKSB 3/8 INTERCHANGEABLE
Stop,angle,plumbing
Mcguire Mfg Co Inc
4730-00-408-7902A7009 INTERCHANGEABLE
Elbow,tube
Mueller Brass Co.
4730-00-507-0034W40109 INTERCHANGEABLE
Tee,tube
Mueller Brass Co.
4730-00-722-2637W1287 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Mueller Brass Co.
Cross-Reference Index
Part NumberManufacturer
806 Nibco Inc (USA)
B16-23 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
5520K56 Mcmaster-Carr Supply Co (USA)
Related Parts
4730-00-270-3886INTERCHANGEABLE
NUT,SLIP JOINT
4730-00-270-3889INTERCHANGEABLE
NUT,SLIP JOINT
4730-00-270-3891INTERCHANGEABLE
NUT,SLIP JOINT
4730002703891
4730-00-270-3892INTERCHANGEABLE
NUT,SLIP JOINT
4730-00-270-3895INTERCHANGEABLE
NUT,SLIP JOINT
4730-00-304-3481INTERCHANGEABLE
COUPLING,PIPE
4510-00-305-7949INTERCHANGEABLE
STOP,ANGLE,PLUMBING
HST05LKSB 3/8
4730-00-408-7902INTERCHANGEABLE
ELBOW,TUBE
A7009
4730-00-507-0034INTERCHANGEABLE
TEE,TUBE
W40109
4730-00-722-2637INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
W1287
4730-00-982-7224INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
W1279
4730-01-057-3852INTERCHANGEABLE
ELBOW,TUBE
A7088

Frequently Asked Questions

What is NSN 4730-00-878-3204?

NSN 4730-00-878-3204 is a Elbow,tube, manufactured by Nibco Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-878-3204?

NSN 4730-00-878-3204 has 3 cross-referenced part numbers: 806 (Nibco Inc), B16-23 (American National Standards Institute Incorporated Dba American National Standards Institute), 5520K56 (Mcmaster-Carr Supply Co).

What NSN replaces 4730-00-878-3204?

There are 12 known substitutes for 4730-00-878-3204: 4730-00-270-3886, 4730-00-270-3889, 4730-00-270-3891 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 806?

Key specifications for 806: Connection Style: SOCKET (TUBE) FIRST END; Flow Angle: 45.0 DEGREES; Nominal Outside Diameter Tube Accommodated: 2.125 INCHES FIRST END IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 8 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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