PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

533481623Elbow,boss

Harold D Hard Co · NSN 4730-00-340-2002 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-340-2002 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-340-2002. Primary manufacturer part number: 533481623.
Features
  • Elbow,boss — FSC 4730
  • Leg Length: 0.625 INCHES NOMINAL FIRST END IN
  • Thread Class: 2A SECOND END A
  • Leg Length: 1.312 INCHES NOMINAL SECOND END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Thread Series Designator: UNS SECOND END
  • Flow Angle: 90.0 DEGREES
  • Connection Style: GASKET SEAL (BOSS) FIRST END
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,boss, cataloged under National Stock Number 4730-00-340-2002, 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 Harold D Hard Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-340-2002
Primary Part Number533481623
Item NameElbow,boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHarold D Hard Co
StatusACTIVE
Leg Length0.625 INCHES NOMINAL FIRST END IN
Thread Class2A SECOND END A
Leg Length1.312 INCHES NOMINAL SECOND END IN
Surface TreatmentCHROMIUM OVERALL
Thread Series DesignatorUNS SECOND END
Flow Angle90.0 DEGREES
Connection StyleGASKET SEAL (BOSS) FIRST END
Thread Series DesignatorUNF FIRST END
Connection StyleFLARED W/ GASKET SEAL (BOSS) SECOND END
Thread Class2B FIRST END
Nominal Thread Size0.500 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Connection TypeTHREADED INTERNAL BOSS FIRST END
Nominal Thread Size0.625 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Thread Quantity Per Inch18 SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-023-99056154-3 INTERCHANGEABLE
Valve,calibrated Flow
Pneudraulics, Inc.
5985-01-396-267061528 INTERCHANGEABLE
Attenuator,variable
Anaren, Inc. Div Anaren Microwave Inc
5330-01-525-749961528 INTERCHANGEABLE
Seal,plain
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
533481623 PRIMARY Harold D Hard Co (USA)
61528 Fyr-Fyter Co Inc (USA)
61543 Fyr-Fyter Co Inc (USA)
Related Parts
4820-01-023-9905INTERCHANGEABLE
VALVE,CALIBRATED FLOW
6154-3
5985-01-396-2670INTERCHANGEABLE
ATTENUATOR,VARIABLE
61528
5330-01-525-7499INTERCHANGEABLE
SEAL,PLAIN
61528

Frequently Asked Questions

What is NSN 4730-00-340-2002?

NSN 4730-00-340-2002 is a Elbow,boss, manufactured by Harold D Hard Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-340-2002?

NSN 4730-00-340-2002 has 3 cross-referenced part numbers: 533481623 (Harold D Hard Co), 61528 (Fyr-Fyter Co Inc), 61543 (Fyr-Fyter Co Inc).

What NSN replaces 4730-00-340-2002?

There are 3 known substitutes for 4730-00-340-2002: 4820-01-023-9905, 5985-01-396-2670, 5330-01-525-7499. Verify interchangeability with system specifications before substitution.

What are the specifications of 533481623?

Key specifications for 533481623: Leg Length: 0.625 INCHES NOMINAL FIRST END IN; Thread Class: 2A SECOND END A; Leg Length: 1.312 INCHES NOMINAL SECOND END IN; Surface Treatment: CHROMIUM OVERALL. 17 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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