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PartsTable / COMPONENT / 40398-09
40398-09 ✓ 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: NICKEL ALLOY OVERALL, body_style: STRAIGHT THRU, temp_rating: 50.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 2A SINGLE THREADED PORTION A, hole_diameter: 0.295 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-168-1949, 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
40398-09
NSN: 4820-01-168-1949
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialNICKEL ALLOY OVERALL
body_styleSTRAIGHT THRU
temp_rating50.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
thread_class2A SINGLE THREADED PORTION A
hole_diameter0.295 INCHES NOMINAL IN
thread_length0.182 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height0.188 INCHES NOMINAL IN
furnished_itemsBRAZING RING
inside_diameter0.266 INCHES NOMINAL IN
regulation_typeAUTOMATIC SINGLE STAGE
outside_diameter5.000 INCHES NOMINAL IN
NSN4820-01-168-1949
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40398-09 · 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: ASTM A494 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
•
STYLE DESIGNATOR: THREADED FLANGED
•
THREAD LENGTH: 0.182 INCHES NOMINAL SINGLE THREADED PORTION IN
•
THREAD QUANTITY PER INCH: 18 SINGLE THREADED PORTION
•
BODY INSIDE DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A494 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY OVERALL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
STYLE DESIGNATORTHREADED FLANGED
THREAD LENGTH0.182 INCHES NOMINAL SINGLE THREADED PORTION IN
SPECIAL FEATURES1.000 IN.OD IN
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
BODY INSIDE DIAMETER0.625 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.875 INCHES SINGLE THREADED PORTION IN
THREAD CLASS2A SINGLE THREADED PORTION A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
93002Interchangeable
interchangeable cross-reference
interchangeable
1093395Interchangeable
interchangeable cross-reference
interchangeable
1092855Interchangeable
interchangeable cross-reference
interchangeable
1091979G1Interchangeable
interchangeable cross-reference
interchangeable
R50200-SUA-6-0182Interchangeable
interchangeable cross-reference
interchangeable
336758Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40398-09?
40398-09 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40398-09?
There are 22 known substitutes for 40398-09: 93002, 1093395, 1092855 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40398-09?
40398-09 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-168-1949. 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