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PartsTable / COMPONENT / 40400-2 FIND NO 25

40400-2 FIND NO 25 — Technical Data Sheet

✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, thread_length: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.875 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 1.625 INCHES SINGLE THREADED PORTION IN, body_inside_diameter: 1.300 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 4820-01-448-7718, 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
40400-2 FIND NO 25
NSN: 4820-01-448-7718
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
thread_length0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.875 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size1.625 INCHES SINGLE THREADED PORTION IN
body_inside_diameter1.300 INCHES NOMINAL IN
seating_surface_shapeFLAT
end_item_identificationVALVES AND ACTUATORS
thread_quantity_per_inch14 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-01-448-7718
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40400-2 FIND NO 25 · 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
•
FLANGE DIAMETER: 1.875 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
•
STYLE DESIGNATOR: THREADED FLANGED
•
MATERIAL: NICKEL ALLOY SEAT
•
THREAD LENGTH: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
•
THREAD QUANTITY PER INCH: 14 SINGLE THREADED PORTION
•
BODY INSIDE DIAMETER: 1.300 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONVALVES AND ACTUATORS
FLANGE DIAMETER1.875 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
STYLE DESIGNATORTHREADED FLANGED
MATERIALNICKEL ALLOY SEAT
THREAD LENGTH0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
BODY INSIDE DIAMETER1.300 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.625 INCHES SINGLE THREADED PORTION IN
SEATING SURFACE SHAPEFLAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
06000279InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7300-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RA20679InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
404002InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3024595-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
24595InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40400-2 FIND NO 25?
40400-2 FIND NO 25 is a SEAT,VALVE.
What parts can replace 40400-2 FIND NO 25?
There are 12 known substitutes for 40400-2 FIND NO 25: 06000279, 7300-4, RA20679 and 9 more. Substitute compatibility should be verified for your specific system.
Is 40400-2 FIND NO 25 still available?
40400-2 FIND NO 25 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026