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186290PC100 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

186290PC100: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.625 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 4.355 INCHES MINIMUM AND 4.370 INCHES MAXIMUM IN, style_designator: PLAIN FLANGED, nominal_thread_size: 0.750 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-825-1998, 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
186290PC100
NSN: 4820-00-825-1998
FSC: 4820 — Valves, Nonpowered
CAGE: 30760 — INGERSOLL RAND CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3A SINGLE THREADED PORTION A
thread_length0.625 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter4.355 INCHES MINIMUM AND 4.370 INCHES MAXIMUM IN
style_designatorPLAIN FLANGED
nominal_thread_size0.750 INCHES SINGLE THREADED PORTION IN
under_flange_height0.375 INCHES NOMINAL IN
body_inside_diameter0.750 INCHES NOMINAL IN
body_outside_diameter3.918 INCHES MINIMUM AND 3.933 INCHES MAXIMUM IN
seating_surface_shapeFLAT
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.313 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN
NSN4820-00-825-1998
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 186290PC100 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.313 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 4.355 INCHES MINIMUM AND 4.370 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 3.918 INCHES MINIMUM AND 3.933 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.625 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.750 INCHES SINGLE THREADED PORTION IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.313 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN
FLANGE DIAMETER4.355 INCHES MINIMUM AND 4.370 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER3.918 INCHES MINIMUM AND 3.933 INCHES MAXIMUM IN
THREAD LENGTH0.625 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.750 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.750 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.375 INCHES NOMINAL IN
THREAD CLASS3A SINGLE THREADED PORTION A
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 3
186311PC100Reference document
Same NSN cross-reference
Reference document — Secondary reference
184450PC100Reference document
Same NSN cross-reference
Reference document — Secondary reference
CMK36K5NReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 186290PC100?
186290PC100 is a SEAT,VALVE.
What parts can replace 186290PC100?
There are 3 known substitutes for 186290PC100: 186311PC100, 184450PC100, CMK36K5N. Substitute compatibility should be verified for your specific system.
What is the NSN for 186290PC100?
186290PC100 is cataloged in the U.S. Government catalog under NSN 4820-00-825-1998. This indicates validated use in U.S. government and defense supply chains.
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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.