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5186637 — DIAPHRAGM,VALVE,FLAT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

5186637: DIAPHRAGM,VALVE,FLAT.

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include hole_diameter: 0.240 INCHES NOMINAL IN, outside_diameter: 11.515 INCHES NOMINAL IN, bolt_hole_quantity: 12, material_thickness: 2.875 INCHES NOMINAL IN, bolt_circle_diameter: 10.400 INCHES NOMINAL IN, center_hole_diameter: 0.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-391-5907, 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
5186637
NSN: 4820-01-391-5907
FSC: 4820 — Valves, Nonpowered
CAGE: 07649 — SENIOR OPERATIONS LLC DBA METAL BELLOWS DIV METAL BELLOWS (USA)
SPECIFICATIONS
hole_diameter0.240 INCHES NOMINAL IN
outside_diameter11.515 INCHES NOMINAL IN
bolt_hole_quantity12
material_thickness2.875 INCHES NOMINAL IN
bolt_circle_diameter10.400 INCHES NOMINAL IN
center_hole_diameter0.875 INCHES NOMINAL IN
NSN4820-01-391-5907
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5186637 · 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
•
OUTSIDE DIAMETER: 11.515 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 2.875 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 12
•
BOLT CIRCLE DIAMETER: 10.400 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.875 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.240 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER11.515 INCHES NOMINAL IN
MATERIAL THICKNESS2.875 INCHES NOMINAL IN
BOLT HOLE QUANTITY12
BOLT CIRCLE DIAMETER10.400 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.875 INCHES NOMINAL IN
HOLE DIAMETER0.240 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5186637?
5186637 is a DIAPHRAGM,VALVE,FLAT.
What is the NSN for 5186637?
5186637 is cataloged in the U.S. Government catalog under NSN 4820-01-391-5907. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.