PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16556Elbow,tube to Boss

Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling · NSN 4730-01-223-3294 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-223-3294 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-223-3294. Primary manufacturer part number: 16556.
Features
  • Elbow,tube to Boss — FSC 4730
  • Leg Length: 0.891 INCHES NOMINAL FIRST END IN
  • Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END
  • Connection Style: FLARED (TUBE) FIRST END
  • Leg Length: 1.031 INCHES NOMINAL SECOND END IN
  • Thread Class: 2A ALL ENDS A
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN
  • Furnished Items and Quantity: 1 LOCKNUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-223-3294, 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 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 13 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-223-3294
Primary Part Number16556
Item NameElbow,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
StatusACTIVE
Leg Length0.891 INCHES NOMINAL FIRST END IN
Connection StyleDOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END
Connection StyleFLARED (TUBE) FIRST END
Leg Length1.031 INCHES NOMINAL SECOND END IN
Thread Class2A ALL ENDS A
Nominal Outside Diameter Tube Accommodated0.250 INCHES ALL ENDS IN
Furnished Items and Quantity1 LOCKNUT AND 1 PREFORMED PACKING AND 1 FLAT WASHER
Seat Angle37.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Flow Angle90.0 DEGREES
Thread Series DesignatorUNF ALL ENDS
Nominal Thread Size0.438 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5905-00-296-847116556 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
4730-00-585-2309 INTERCHANGEABLE
Elbow,tube to Boss
5950-00-645-071116556 INTERCHANGEABLE
Transformer,audio Frequency
Essex Brownell Inc. Div Essex Group Inc
5330-00-857-1922 INTERCHANGEABLE
Gasket and Seal Set
2530-01-084-037544420 INTERCHANGEABLE
Brake,shoe Type
Titan Distribution Inc Dba Titan Tire
3510-01-140-297516556 INTERCHANGEABLE
Roller Assembly
Forenta Lp
4730-01-388-96684C5OX INTERCHANGEABLE
Elbow,tube to Boss
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
6115-01-538-0742 INTERCHANGEABLE
Generator,direct Current
Cross-Reference Index
Part NumberManufacturer
16556 Hyster-Yale Group, Inc. (USA)
4C50X-S Parker-Hannifin Corp Fluidpower Group Mobile Hydraulics Div (USA)
16556 PRIMARY Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
Related Parts
5905-00-296-8471INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
16556
4730-00-585-2309INTERCHANGEABLE
ELBOW,TUBE TO BOSS
5950-00-645-0711INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
16556
5330-00-857-1922INTERCHANGEABLE
GASKET AND SEAL SET
2530-01-084-0375INTERCHANGEABLE
BRAKE,SHOE TYPE
44420
3510-01-140-2975INTERCHANGEABLE
ROLLER ASSEMBLY
16556
4730-01-388-9668INTERCHANGEABLE
ELBOW,TUBE TO BOSS
4C5OX
6115-01-538-0742INTERCHANGEABLE
GENERATOR,DIRECT CURRENT

Frequently Asked Questions

What is NSN 4730-01-223-3294?

NSN 4730-01-223-3294 is a Elbow,tube to Boss, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-223-3294?

NSN 4730-01-223-3294 has 3 cross-referenced part numbers: 16556 (Hyster-Yale Group, Inc.), 4C50X-S (Parker-Hannifin Corp Fluidpower Group Mobile Hydraulics Div), 16556 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).

What NSN replaces 4730-01-223-3294?

There are 8 known substitutes for 4730-01-223-3294: 5905-00-296-8471, 4730-00-585-2309, 5950-00-645-0711 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16556?

Key specifications for 16556: Leg Length: 0.891 INCHES NOMINAL FIRST END IN; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END; Connection Style: FLARED (TUBE) FIRST END; Leg Length: 1.031 INCHES NOMINAL SECOND END IN. 13 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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