PartsTable
Technical Data Sheet
Download PDF

DF330644 ASSY 91 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

DF330644 ASSY 91: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: BUTT WELD PIPE ALL ENDS, connection_style: BEVELED (PIPE) ALL ENDS, style_designator: STRAIGHT THRU, maximum_operating_temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF, valve_operation_method: HYDRAULIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-348-5813, 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
DF330644 ASSY 91
NSN: 4820-01-348-5813
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeBUTT WELD PIPE ALL ENDS
connection_styleBEVELED (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
maximum_operating_temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodHYDRAULIC
media_for_which_designedWATER, SALT SINGLE RESPONSE
nominal_pipe_size_accommodated3.000 INCHES ALL ENDS IN
NSN4820-01-348-5813
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DF330644 ASSY 91 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 3.000 INCHES ALL ENDS IN
•
CONNECTION STYLE: BEVELED (PIPE) ALL ENDS
•
CONNECTION TYPE: BUTT WELD PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MAXIMUM OPERATING TEMP: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED3.000 INCHES ALL ENDS IN
CONNECTION STYLEBEVELED (PIPE) ALL ENDS
CONNECTION TYPEBUTT WELD PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY STEM
MATERIALPLASTIC SEAT
MATERIALTITANIUM FLOW CONTROL DEVICE
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 2
211068163Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
211037298Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy DF330644 ASSY 91?
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 DF330644 ASSY 91?
DF330644 ASSY 91 is a VALVE,BALL.
What parts can replace DF330644 ASSY 91?
There are 2 known substitutes for DF330644 ASSY 91: 211068163, 211037298. Substitute compatibility should be verified for your specific system.
What is the NSN for DF330644 ASSY 91?
DF330644 ASSY 91 is cataloged in the U.S. Government catalog under NSN 4820-01-348-5813. 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 — DF330644 ASSY 91

✓ 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.