PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1655822PC4Elbow,pipe to Tube

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 4730-00-677-2566 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-677-2566 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-677-2566. Primary manufacturer part number: 1655822PC4.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Flow Angle: 45.0 DEGREES
  • Furnished Items and Quantity: 1 PREFORMED PACKING
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Leg Length: 0.937 INCHES NOMINAL FIRST END IN
  • Thread Class: 2A FIRST END A
  • Thread Series Designator: UNF FIRST END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-677-2566, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-677-2566
Primary Part Number1655822PC4
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Flow Angle45.0 DEGREES
Furnished Items and Quantity1 PREFORMED PACKING
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Leg Length0.937 INCHES NOMINAL FIRST END IN
Thread Class2A FIRST END A
Thread Series DesignatorUNF FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Surface TreatmentPHOSPHATE OVERALL
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Connection StylePLAIN (PIPE) SECOND END
Leg Length0.750 INCHES NOMINAL SECOND END IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationMIL-P-16232,TYPE Z,CLASS 4C MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorNPTF SECOND END
Material Document and ClassificationFED STD 66,COMP C1118 FED STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size0.375 INCHES SECOND END IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY THE INSIDE AND OUTSIDE FINISH
Connection StyleGASKET SEAL, COMPRESSION (TUBE) FIRST END
Nominal Thread Size0.875 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5120-00-277-1242 INTERCHANGEABLE
Wrench,open End
5360-00-526-38613608 INTERCHANGEABLE
Spring,helical,extension
Telemechanics Inc
5910-00-993-221203762800 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Bae Systems Information and Electronic Systems Integration Inc.
5950-01-204-286813160198 INTERCHANGEABLE
Reactor
Us Army Aviation and Missile Command
5305-01-223-6487 INTERCHANGEABLE
Screw
4720-01-281-2422 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
1655822PC4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
355-8 Lenz Inc Dba the Lenz Company (USA)
Related Parts
5120-00-277-1242INTERCHANGEABLE
WRENCH,OPEN END
5360-00-526-3861INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3608
5910-00-993-2212INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
03762800
5950-01-204-2868INTERCHANGEABLE
REACTOR
13160198
5305-01-223-6487INTERCHANGEABLE
SCREW
4720-01-281-2422INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4730-00-677-2566?

NSN 4730-00-677-2566 is a Elbow,pipe to Tube, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-677-2566?

NSN 4730-00-677-2566 has 2 cross-referenced part numbers: 1655822PC4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 355-8 (Lenz Inc Dba the Lenz Company).

What NSN replaces 4730-00-677-2566?

There are 6 known substitutes for 4730-00-677-2566: 5120-00-277-1242, 5360-00-526-3861, 5910-00-993-2212 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1655822PC4?

Key specifications for 1655822PC4: Flow Angle: 45.0 DEGREES; Furnished Items and Quantity: 1 PREFORMED PACKING; Connection Type: THREADED EXTERNAL TUBE FIRST END; Leg Length: 0.937 INCHES NOMINAL FIRST END IN. 20 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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