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7108102-OA-176 — INDICATOR,VALVE OPENING

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7108102-OA-176: INDICATOR,VALVE OPENING.

The INDICATOR,VALVE OPENING is a the manufacturer industrial component. Key specifications include diameter: 4.560 INCHES NOMINAL IN, material: COPPER ALLOY CASE, pointer_purpose: OPEN AND SHUT, part_name_assigned_by_controlling_agency: INDICATOR DISK. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-520-6449, 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
7108102-OA-176
NSN: 4820-01-520-6449
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter4.560 INCHES NOMINAL IN
materialCOPPER ALLOY CASE
pointer_purposeOPEN AND SHUT
part_name_assigned_by_controlling_agencyINDICATOR DISK
NSN4820-01-520-6449
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7108102-OA-176 · 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
•
DIAMETER: 4.560 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY CASE
•
POINTER PURPOSE: OPEN AND SHUT
TECHNICAL CHARACTERISTICS
DIAMETER4.560 INCHES NOMINAL IN
SPECIAL FEATURESTHIS IS ONE OF THREE MAJOR COMPONENTS OF A MECHANICAL POSITION INDICATOR ON THE GEARBOX/ACTUATOR FOR A 4" BALL VALVE. THIS ITEM HAS RED ENAMAL PAINTED AREA THAT ALIGNS WITH A INDICATOR PLATE (FIND 173) WITH OPEN/SHUT MARKINGS AT 90 DEG TO EACH OTHER. THE THIRD COMPONENT IS A FLANGE-LIKE ITEM CALLED AN INDICATOR.
PART NAME ASSIGNED BY CONTROLLING AGENCYINDICATOR DISK
MATERIALCOPPER ALLOY CASE
POINTER PURPOSEOPEN AND SHUT
SUBSTITUTES & CROSS-REFERENCES 2
845-7108102-OA-176Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7108102Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 7108102-OA-176?
7108102-OA-176 is a INDICATOR,VALVE OPENING.
What parts can replace 7108102-OA-176?
There are 2 known substitutes for 7108102-OA-176: 845-7108102-OA-176, 7108102. Substitute compatibility should be verified for your specific system.
What is the NSN for 7108102-OA-176?
7108102-OA-176 is cataloged in the U.S. Government catalog under NSN 4820-01-520-6449. 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.