PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS20823-4KElbow,pipe to Tube

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-929-3385 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-929-3385 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-929-3385. Primary manufacturer part number: MS20823-4K.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Material Document and Classification: QQ-S-763,CL 316 FED SPEC SINGLE MATERIAL RESPONSE ELBOW
  • Surface Treatment: PASSIVATE INSIDE
  • Material: STEEL COMP 316 ELBOW
  • Thread Class: 2A FIRST END A
  • Thread Series Designator: NPTF SECOND END
  • Leg Length: 0.703 INCHES NOMINAL FIRST END IN
  • Seat Angle: 37.0 DEGREES FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 316 Elbow construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-929-3385, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN4730-00-929-3385
Primary Part NumberMS20823-4K
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Material Document and ClassificationQQ-S-763,CL 316 FED SPEC SINGLE MATERIAL RESPONSE ELBOW
Surface TreatmentPASSIVATE INSIDE
MaterialSTEEL COMP 316 ELBOW
Thread Class2A FIRST END A
Thread Series DesignatorNPTF SECOND END
Leg Length0.703 INCHES NOMINAL FIRST END IN
Seat Angle37.0 DEGREES FIRST END
Flow Angle90.0 DEGREES
Nominal Pipe Size Accommodated0.125 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Quantity Per Inch20 FIRST END
Surface TreatmentPASSIVATE OUTSIDE
Nominal Thread Size0.438 INCHES FIRST END IN
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Thread Size0.125 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Leg Length0.625 INCHES NOMINAL SECOND END IN
Connection StyleFLARED (TUBE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-186-9956 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-189-3018 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-189-3019 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-231-3940AS5196-1616 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
4730-00-279-7814AS5196K0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
4730-00-279-7818 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-279-7820 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-279-7826 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-287-0257 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-287-0265 INTERCHANGEABLE
Elbow,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
MS20823-4K Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS20823 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-186-9956INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-189-3018INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-189-3019INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-231-3940INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5196-1616
4730-00-279-7814INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5196K0402
4730-00-279-7818INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-279-7820INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-279-7826INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-287-0257INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-287-0265INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-336-9435INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-483-0522INTERCHANGEABLE
ELBOW,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-00-929-3385?

NSN 4730-00-929-3385 is a Elbow,pipe to Tube, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-929-3385?

NSN 4730-00-929-3385 has 2 cross-referenced part numbers: MS20823-4K (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS20823 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-00-929-3385?

There are 12 known substitutes for 4730-00-929-3385: 4730-00-186-9956, 4730-00-189-3018, 4730-00-189-3019 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS20823-4K?

Key specifications for MS20823-4K: Material Document and Classification: QQ-S-763,CL 316 FED SPEC SINGLE MATERIAL RESPONSE ELBOW; Surface Treatment: PASSIVATE INSIDE; Material: STEEL COMP 316 ELBOW; Thread Class: 2A FIRST END A. 19 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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