PartsTable
Technical Data Sheet
Download PDF

DF330661 FIND 8 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

DF330661 FIND 8: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON SEAT, special_features: 1.061 IN. OD; 0.256 IN.

H; FOR 0.250 IN. BALL VALVE IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-350-1522, 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
DF330661 FIND 8
NSN: 4820-01-350-1522
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON SEAT
special_features1.061 IN. OD; 0.256 IN. H; FOR 0.250 IN. BALL VALVE IN
NSN4820-01-350-1522
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DF330661 FIND 8 · 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
•
MATERIAL: PLASTIC POLYAMIDE NYLON SEAT
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES1.061 IN. OD; 0.256 IN. H; FOR 0.250 IN. BALL VALVE IN
MATERIALPLASTIC POLYAMIDE NYLON SEAT
SUBSTITUTES & CROSS-REFERENCES 2
556-6408589Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
211054812Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy DF330661 FIND 8?
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 DF330661 FIND 8?
DF330661 FIND 8 is a SEAT,VALVE.
What parts can replace DF330661 FIND 8?
There are 2 known substitutes for DF330661 FIND 8: 556-6408589, 211054812. Substitute compatibility should be verified for your specific system.
What is the NSN for DF330661 FIND 8?
DF330661 FIND 8 is cataloged in the U.S. Government catalog under NSN 4820-01-350-1522. 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 — DF330661 FIND 8

✓ 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.