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D49923 — Technical Data Sheet

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— · 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include media_for_which_designed: AIR OR NITROGEN, GASEOUS, nondefinitive_spec/std_data: A CLASS AND B DESIGN AND 3 TYPE AND 2.000 IN. SIZE IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 4820-01-145-6474, 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
D49923
NSN: 4820-01-145-6474
FSC: 4820
CAGE: 34889 — HUNT VALVE COMPANY INC DBA UNION FLONETICS (USA)
SPECIFICATIONS
media_for_which_designedAIR OR NITROGEN, GASEOUS
nondefinitive_spec/std_dataA CLASS AND B DESIGN AND 3 TYPE AND 2.000 IN. SIZE IN
NSN4820-01-145-6474
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D49923 · 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
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND B DESIGN AND 3 TYPE AND 2.000 IN. SIZE IN
•
MEDIA FOR WHICH DESIGNED: AIR OR NITROGEN, GASEOUS
TECHNICAL CHARACTERISTICS
NONDEFINITIVE SPEC/STD DATAA CLASS AND B DESIGN AND 3 TYPE AND 2.000 IN. SIZE IN
MEDIA FOR WHICH DESIGNEDAIR OR NITROGEN, GASEOUS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
D48373/D48373N0InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D48373/D48373NO REV/882096254InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D48373InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P1400-1.5 INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P1400-1.5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILV24384InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D49923?
D49923 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace D49923?
There are 18 known substitutes for D49923: D48373/D48373N0, D48373/D48373NO REV/882096254, D48373 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D49923?
D49923 is cataloged in the Federal Logistics Information System under NSN 4820-01-145-6474. 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: October 2026