PartsTable
Technical Data Sheet
PartsTable / COMPONENT / DD-4639 REF NO 2

DD-4639 REF NO 2 — Technical Data Sheet

✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The PLUG,ROTARY,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-155-7971, 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
DD-4639 REF NO 2
NSN: 4820-01-155-7971
FSC: 4820
CAGE: 53424 — CUNICO CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY
port_quantity3
NSN4820-01-155-7971
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DD-4639 REF NO 2 · 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
•
PORT QUANTITY: 3
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
PORT QUANTITY3
MATERIALCOPPER ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9962InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TMT-99-62InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9100-1732InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9062InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BACG20C24InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SCC68445-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy DD-4639 REF NO 2?
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 DD-4639 REF NO 2?
DD-4639 REF NO 2 is a PLUG,ROTARY,VALVE.
What parts can replace DD-4639 REF NO 2?
There are 15 known substitutes for DD-4639 REF NO 2: 9962, TMT-99-62, 9100-1732 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD-4639 REF NO 2?
DD-4639 REF NO 2 is cataloged in the Federal Logistics Information System under NSN 4820-01-155-7971. 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 — DD-4639 REF NO 2

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026