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6944562-1 — DIAPHRAGM,ACTUATOR VALVE,SPECIAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6944562-1: DIAPHRAGM,ACTUATOR VALVE,SPECIAL.

DIAPHRAGM,ACTUATOR VALVE,SPECIAL. Key specifications include overall_height: 0.625 INCHES NOMINAL IN, shank_diameter: 6.593 INCHES NOMINAL IN, style_designator: SPECIAL SHAPED, bolt_hole_quantity: 14, center_hole_diameter: 1.851 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-520-1589, 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
6944562-1
NSN: 4820-00-520-1589
FSC: 4820 — Valves, Nonpowered
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
overall_height0.625 INCHES NOMINAL IN
shank_diameter6.593 INCHES NOMINAL IN
style_designatorSPECIAL SHAPED
bolt_hole_quantity14
center_hole_diameter1.851 INCHES NOMINAL IN
NSN4820-00-520-1589
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6944562-1 · 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
•
SHANK DIAMETER: 6.593 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPECIAL SHAPED
•
BOLT HOLE QUANTITY: 14
•
CENTER HOLE DIAMETER: 1.851 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER6.593 INCHES NOMINAL IN
OVERALL HEIGHT0.625 INCHES NOMINAL IN
STYLE DESIGNATORSPECIAL SHAPED
BOLT HOLE QUANTITY14
CENTER HOLE DIAMETER1.851 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6944562-1?
6944562-1 is a DIAPHRAGM,ACTUATOR VALVE,SPECIAL.
What is the NSN for 6944562-1?
6944562-1 is cataloged in the U.S. Government catalog under NSN 4820-00-520-1589. 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.