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PartsTable / COMPONENT / 73-103-01 1/2IN
73-103-01 1/2IN ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The 73-103-01 1/2IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-428-1805, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
73-103-01 1/2IN
NSN: 4820-01-428-1805
FSC: 4820
CAGE: 72219 — AALBERTS INTEGRATED PIPING SYSTEMS AMERICAS, INC. (USA)
SPECIFICATIONS
Part Number73-103-01 1/2IN
NSN4820-01-428-1805
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 73-103-01 1/2IN · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: STRAIGHT THRU
•
BONNET TYPE: INSIDE SCREW
•
FURNISHED ITEMS AND QUANTITY: 1 LEVER
•
MATERIAL: STEEL BODY
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSTRAIGHT THRU
BONNET TYPEINSIDE SCREW
FURNISHED ITEMS AND QUANTITY1 LEVER
MATERIALSTEEL BODY
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL STEM
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPTF ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
73-103Interchangeable
interchangeable cross-reference
interchangeable
07-0501-0103Interchangeable
interchangeable cross-reference
interchangeable
815PInterchangeable
interchangeable cross-reference
interchangeable
72-6970-444Interchangeable
interchangeable cross-reference
interchangeable
50BA03Interchangeable
interchangeable cross-reference
interchangeable
730-103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73-103-01 1/2IN?
73-103-01 1/2IN is a 73-103-01 1/2IN.
What parts can replace 73-103-01 1/2IN?
There are 11 known substitutes for 73-103-01 1/2IN: 73-103, 07-0501-0103, 815P and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 73-103-01 1/2IN?
73-103-01 1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-428-1805. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026