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A7284.001.156 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A7284.001.156: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, overall_height: 0.974 INCHES NOMINAL IN, shank_diameter: 0.550 INCHES NOMINAL IN, flange_diameter: 0.986 INCHES NOMINAL IN, special_features: DISK FLANE FLATTED ON TWO SIDES, style_designator: POPPET. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-047-9569, 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
A7284.001.156
NSN: 4820-01-047-9569
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY
overall_height0.974 INCHES NOMINAL IN
shank_diameter0.550 INCHES NOMINAL IN
flange_diameter0.986 INCHES NOMINAL IN
special_featuresDISK FLANE FLATTED ON TWO SIDES
style_designatorPOPPET
NSN4820-01-047-9569
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A7284.001.156 · 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: 0.550 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.986 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.550 INCHES NOMINAL IN
FLANGE DIAMETER0.986 INCHES NOMINAL IN
OVERALL HEIGHT0.974 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
SPECIAL FEATURESDISK FLANE FLATTED ON TWO SIDES
MATERIALNICKEL ALLOY
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 3
A4712-001-127Reference document
Same NSN cross-reference
Reference document — Secondary reference
A7284-001-127Reference document
Same NSN cross-reference
Reference document — Secondary reference
20249 PC5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 A7284.001.156?
A7284.001.156 is a DISK,VALVE.
What parts can replace A7284.001.156?
There are 3 known substitutes for A7284.001.156: A4712-001-127, A7284-001-127, 20249 PC5. Substitute compatibility should be verified for your specific system.
What is the NSN for A7284.001.156?
A7284.001.156 is cataloged in the U.S. Government catalog under NSN 4820-01-047-9569. 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.