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Technical Data Sheet
PartsTable / COMPONENT / 369959C1
369959C1 ✓ 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 DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include width: 0.7760 INCHES MINIMUM AND 0.7840 INCHES MAXIMUM IN, diameter: 0.2700 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, corner_shape: SQUARE SECOND OUTSIDE CORNER, overall_length: 0.7760 INCHES MINIMUM AND 0.7840 INCHES MAXIMUM IN, special_features: FIRST INSIDE CORNER CHAMFERED 30 DEG. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-925-0076, 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
369959C1
NSN: 4820-00-925-0076
FSC: 4820
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
width0.7760 INCHES MINIMUM AND 0.7840 INCHES MAXIMUM IN
diameter0.2700 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
corner_shapeSQUARE SECOND OUTSIDE CORNER
overall_length0.7760 INCHES MINIMUM AND 0.7840 INCHES MAXIMUM IN
special_featuresFIRST INSIDE CORNER CHAMFERED 30 DEG
style_designatorROUND W/FOUR FLATS
overall_thickness0.0230 INCHES MINIMUM AND 0.0260 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN4820-00-925-0076
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 369959C1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SPL091243-1ITEM2Interchangeable
interchangeable cross-reference
interchangeable
300-57Interchangeable
interchangeable cross-reference
interchangeable
245835Interchangeable
interchangeable cross-reference
interchangeable
1377-M344Interchangeable
interchangeable cross-reference
interchangeable
2400-11Interchangeable
interchangeable cross-reference
interchangeable
FD860514V ITEM 25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 369959C1?
369959C1 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 369959C1?
There are 17 known substitutes for 369959C1: SPL091243-1ITEM2, 300-57, 245835 and 14 more. Substitute compatibility should be verified for your specific system.
Is 369959C1 still available?
369959C1 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