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Technical Data Sheet
PartsTable / COMPONENT / 27-008-18
27-008-18 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, special_features: USED ON A 2 IN. GATE VALVE IN, style_designator: PLAIN, seating_surface_shape: FLAT, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-424-2177, 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
27-008-18
NSN: 4820-01-424-2177
FSC: 4820
CAGE: 30263 — PIMA VALVE, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
special_featuresUSED ON A 2 IN. GATE VALVE IN
style_designatorPLAIN
seating_surface_shapeFLAT
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
NSN4820-01-424-2177
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 27-008-18 · 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
•
MATERIAL: NICKEL ALLOY SEAT
•
STYLE DESIGNATOR: PLAIN
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY SEAT
STYLE DESIGNATORPLAIN
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESUSED ON A 2 IN. GATE VALVE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
G800581-8Interchangeable
interchangeable cross-reference
interchangeable
2700-8Interchangeable
interchangeable cross-reference
interchangeable
55131-108Interchangeable
interchangeable cross-reference
interchangeable
5740672Interchangeable
interchangeable cross-reference
interchangeable
J30R6-TYPE1-5/8IDInterchangeable
interchangeable cross-reference
interchangeable
J30Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 27-008-18?
27-008-18 is a SEAT,VALVE.
What parts can replace 27-008-18?
There are 12 known substitutes for 27-008-18: G800581-8, 2700-8, 55131-108 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 27-008-18?
27-008-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-424-2177. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026