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Technical Data Sheet
PartsTable / COMPONENT / 40473L1
40473L1 ✓ 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 VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, body_style: STRAIGHT THRU, bulb_length: 6.125 INCHES NOMINAL IN, bulb_diameter: 1.500 INCHES NOMINAL IN, furnished_items: ADJUSTMENT STEM AND BONNET, flow_control_device: DOUBLE SEATED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-321-3045, 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
40473L1
NSN: 4820-01-321-3045
FSC: 4820
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
body_styleSTRAIGHT THRU
bulb_length6.125 INCHES NOMINAL IN
bulb_diameter1.500 INCHES NOMINAL IN
furnished_itemsADJUSTMENT STEM AND BONNET
flow_control_deviceDOUBLE SEATED
thermostatic_elementLIQUID IMMERSION TYPE
two-way_valve_actionREVERSE ACTING
capillary_tube_length120.000 INCHES NOMINAL IN
face_to_face_distance7.500 INCHES NOMINAL IN
end_connection_quantity2
first_end_connection_typePLAIN FACE FLANGE
NSN4820-01-321-3045
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40473L1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
•
MATERIAL: NICKEL ALLOY STEM
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALNICKEL ALLOY STEM
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
MATERIALCOPPER ALLOY 922 BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY SEAT
MATERIALPLASTIC TETRAFLUOROETHYLENE PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
172-00Interchangeable
interchangeable cross-reference
interchangeable
40205-25Interchangeable
interchangeable cross-reference
interchangeable
40473Interchangeable
interchangeable cross-reference
interchangeable
40175-01 FIND NO 9Interchangeable
interchangeable cross-reference
interchangeable
40145-8Interchangeable
interchangeable cross-reference
interchangeable
151-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40473L1?
40473L1 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 40473L1?
There are 15 known substitutes for 40473L1: 172-00, 40205-25, 40473 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40473L1?
40473L1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-321-3045. 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