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AB-B730-2D4 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

AB-B730-2D4: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, flange_diameter: 0.440 INCHES NOMINAL IN, style_designator: POPPET, end_item_identification: 1520-01-106-9519, material_document_and_classification: AISI 303 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-331-8875, 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
AB-B730-2D4
NSN: 4820-01-331-8875
FSC: 4820 — Valves, Nonpowered
CAGE: 18350 — PALL AEROPOWER CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303
flange_diameter0.440 INCHES NOMINAL IN
style_designatorPOPPET
end_item_identification1520-01-106-9519
material_document_and_classificationAISI 303 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-331-8875
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: AB-B730-2D4 · 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
•
FLANGE DIAMETER: 0.440 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 303 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 303
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.440 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303 ASSN STD SINGLE MATERIAL RESPONSE
END ITEM IDENTIFICATION1520-01-106-9519
MATERIALSTEEL COMP 303
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 AB-B730-2D4?
AB-B730-2D4 is a DISK,VALVE.
What is the NSN for AB-B730-2D4?
AB-B730-2D4 is cataloged in the U.S. Government catalog under NSN 4820-01-331-8875. 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.