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Technical Data Sheet
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8556REVAPC7 — Technical Data Sheet

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— · 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: COPPER ALLOY 922 OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 1.000 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 1.250 INCHES NOMINAL IN, style_designator: PLAIN THREADED, seat_angle_in_deg: 45.000 NOMINAL. This part is cataloged in the Federal Logistics Information System under NSN 4820-00-851-7888, 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
8556REVAPC7
NSN: 4820-00-851-7888
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length1.000 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height1.250 INCHES NOMINAL IN
style_designatorPLAIN THREADED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size1.125 INCHES SINGLE THREADED PORTION IN
body_inside_diameter0.500 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_series_designatorUNEF SINGLE THREADED PORTION
NSN4820-00-851-7888
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8556REVAPC7 · 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
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN THREADED
•
NOMINAL THREAD SIZE: 1.125 INCHES SINGLE THREADED PORTION IN
•
MATERIAL: COPPER ALLOY 922 OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
•
THREAD SERIES DESIGNATOR: UNEF SINGLE THREADED PORTION
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
OVERALL HEIGHT1.250 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN THREADED
NOMINAL THREAD SIZE1.125 INCHES SINGLE THREADED PORTION IN
MATERIALCOPPER ALLOY 922 OVERALL
SEATING SURFACE SHAPEANGULAR
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD LENGTH1.000 INCHES NOMINAL SINGLE THREADED PORTION IN
SEAT ANGLE IN DEG45.000 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
IGA-024InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AMRH-8-BF-6/A208InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
900142-0007InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A7410InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8503-16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8500-16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8556REVAPC7?
8556REVAPC7 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 8556REVAPC7?
There are 10 known substitutes for 8556REVAPC7: IGA-024, AMRH-8-BF-6/A208, 900142-0007 and 7 more. Substitute compatibility should be verified for your specific system.
Is 8556REVAPC7 still available?
8556REVAPC7 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026