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DD445S4101-277PC4 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

DD445S4101-277PC4: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 0.938 INCHES NOMINAL IN, special_features: USED ON IWA JIMA CLASS LPH, style_designator: PLAIN THREADED. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-336-9276, 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
DD445S4101-277PC4
NSN: 4820-00-336-9276
FSC: 4820 — Valves, Nonpowered
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class3A SINGLE THREADED PORTION A
thread_length0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height0.938 INCHES NOMINAL IN
special_featuresUSED ON IWA JIMA CLASS LPH
style_designatorPLAIN THREADED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size1.125 INCHES SINGLE THREADED PORTION IN
body_inside_diameter0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
thread_series_designatorUNEF SINGLE THREADED PORTION
NSN4820-00-336-9276
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DD445S4101-277PC4 · 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
•
THREAD LENGTH: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: PLAIN THREADED
•
BODY INSIDE DIAMETER: 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 1.125 INCHES SINGLE THREADED PORTION IN
•
THREAD CLASS: 3A SINGLE THREADED PORTION A
•
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.938 INCHES NOMINAL IN
THREAD LENGTH0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORPLAIN THREADED
BODY INSIDE DIAMETER0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
NOMINAL THREAD SIZE1.125 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURESUSED ON IWA JIMA CLASS LPH
THREAD CLASS3A SINGLE THREADED PORTION A
MATERIALNICKEL ALLOY OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
SUBSTITUTES & CROSS-REFERENCES 2
84033Reference document
Same NSN cross-reference
Reference document — Secondary reference
R6215DDPC4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DD445S4101-277PC4?
DD445S4101-277PC4 is a MICROCIRCUIT,DIGITAL.
What parts can replace DD445S4101-277PC4?
There are 2 known substitutes for DD445S4101-277PC4: 84033, R6215DDPC4. Substitute compatibility should be verified for your specific system.
What is the NSN for DD445S4101-277PC4?
DD445S4101-277PC4 is cataloged in the U.S. Government catalog under NSN 4820-00-336-9276. 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.