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Technical Data Sheet
PartsTable / COMPONENT / N-407
N-407 ✓ 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: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, thread_class: 2B, thread_length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-521-9760, 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
N-407
NSN: 4820-00-521-9760
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_class2B
thread_length0.375 INCHES NOMINAL SINGLE THREADED PORTION IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
flange_diameter3.156 INCHES NOMINAL IN
hardness_rating121.0 BRINELL STANDARD MINIMUM
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorFAUCET
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
NSN4820-00-521-9760
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N-407 · 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
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
•
STYLE DESIGNATOR: FAUCET
•
BODY INSIDE DIAMETER: 2.594 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
NOMINAL THREAD SIZE: 2.938 INCHES SINGLE THREADED PORTION IN
•
MATERIAL: NICKEL ALLOY OVERALL
•
FLANGE SEAT TO DISK END HEIGHT: 0.375 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
STYLE DESIGNATORFAUCET
BODY INSIDE DIAMETER2.594 INCHES NOMINAL IN
SEATING SURFACE SHAPEFLAT
NOMINAL THREAD SIZE2.938 INCHES SINGLE THREADED PORTION IN
MATERIALNICKEL ALLOY OVERALL
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL IN
FLANGE DIAMETER3.156 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
862-4Interchangeable
interchangeable cross-reference
interchangeable
HS12-967-11Interchangeable
interchangeable cross-reference
interchangeable
MS35690-704Interchangeable
interchangeable cross-reference
interchangeable
N-407Interchangeable
interchangeable cross-reference
interchangeable
8107-N-0440-0Interchangeable
interchangeable cross-reference
interchangeable
532359-407Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N-407?
N-407 is a SEAT,VALVE.
What parts can replace N-407?
There are 13 known substitutes for N-407: 862-4, HS12-967-11, MS35690-704 and 10 more. Substitute compatibility should be verified for your specific system.
Is N-407 still available?
N-407 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: July 2026