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2515W440 — DIAPHRAGM SET,PACKLESS VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2515W440: DIAPHRAGM SET,PACKLESS VALVE.

The DIAPHRAGM SET,PACKLESS VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT, B-2 BOMBER, nonsupply_items_and_quantities: DIAPHRAGM 2,DIAPRAGM SUPPORT PLATE 4,PIN 1,RETAINING RING 2. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-375-1477, 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
2515W440
NSN: 4820-01-375-1477
FSC: 4820 — Valves, Nonpowered
CAGE: 0GD25 — ALLIED DEFENSE INDUSTRIES, LLC DBA AMS DISTRIBUTION (USA)
SPECIFICATIONS
component_quantity9
end_item_identificationAIRCRAFT, B-2 BOMBER
nonsupply_items_and_quantitiesDIAPHRAGM 2,DIAPRAGM SUPPORT PLATE 4,PIN 1,RETAINING RING 2
NSN4820-01-375-1477
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2515W440 · 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
•
COMPONENT QUANTITY: 9
•
NONSUPPLY ITEMS AND QUANTITIES: DIAPHRAGM 2,DIAPRAGM SUPPORT PLATE 4,PIN 1,RETAINING RING 2
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY9
NONSUPPLY ITEMS AND QUANTITIESDIAPHRAGM 2,DIAPRAGM SUPPORT PLATE 4,PIN 1,RETAINING RING 2
END ITEM IDENTIFICATIONAIRCRAFT, B-2 BOMBER
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 2515W440?
2515W440 is a DIAPHRAGM SET,PACKLESS VALVE.
What is the NSN for 2515W440?
2515W440 is cataloged in the U.S. Government catalog under NSN 4820-01-375-1477. 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.