PartsTable
Technical Data Sheet
Download PDF

909-3IN — VALVE ASSEMBLY,BACKFLOW PREVENTE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

909-3IN: VALVE ASSEMBLY,BACKFLOW PREVENTE.

VALVE ASSEMBLY,BACKFLOW PREVENTE. This part is cataloged in the U.S. Government catalog under NSN 4820-01-252-2664, 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
909-3IN
NSN: 4820-01-252-2664
FSC: 4820 — Valves, Nonpowered
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
general_characteristics_item_descriptionEPOXY COATED IRON BODY; REMOVEABLE BRONZE SEATS; STAINLESS STEEL INTERNAL PARTS; FURNISHED WITH NON-RISING GATE VALVE SHUT-OFFS
NSN4820-01-252-2664
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 909-3IN · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: EPOXY COATED IRON BODY; REMOVEABLE BRONZE SEATS; STAINLESS STEEL INTERNAL PARTS; FURNISHED WITH NON-RISING GATE VALVE SHUT-OFFS
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONEPOXY COATED IRON BODY; REMOVEABLE BRONZE SEATS; STAINLESS STEEL INTERNAL PARTS; FURNISHED WITH NON-RISING GATE VALVE SHUT-OFFS
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
Ready to buy 909-3IN?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 909-3IN?
909-3IN is a VALVE ASSEMBLY,BACKFLOW PREVENTE.
What is the NSN for 909-3IN?
909-3IN is cataloged in the U.S. Government catalog under NSN 4820-01-252-2664. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 909-3IN

✓ 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.