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PartsTable / COMPONENT / 20181-1001-1
20181-1001-1 ✓ 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 PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416, end_item_identification: SEAWOLF CLASS SSN, valve_design_control_activity: 78062, valve_type_for_which_designed: DIRECTIONAL CONTROL LINEAR, valve_model_number_for_which_designed: 21078. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-436-0148, 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
20181-1001-1
NSN: 4820-01-436-0148
FSC: 4820
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 416
end_item_identificationSEAWOLF CLASS SSN
valve_design_control_activity78062
valve_type_for_which_designedDIRECTIONAL CONTROL LINEAR
valve_model_number_for_which_designed21078
NSN4820-01-436-0148
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20181-1001-1 · 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
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 21078
•
VALVE DESIGN CONTROL ACTIVITY: 78062
•
VALVE TYPE FOR WHICH DESIGNED: DIRECTIONAL CONTROL LINEAR
•
MATERIAL: STEEL COMP 416
TECHNICAL CHARACTERISTICS (FLIS)
VALVE MODEL NUMBER FOR WHICH DESIGNED21078
VALVE DESIGN CONTROL ACTIVITY78062
VALVE TYPE FOR WHICH DESIGNEDDIRECTIONAL CONTROL LINEAR
MATERIALSTEEL COMP 416
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
A6162Interchangeable
interchangeable cross-reference
interchangeable
21078Interchangeable
interchangeable cross-reference
interchangeable
152C71Interchangeable
interchangeable cross-reference
interchangeable
2100-0059Interchangeable
interchangeable cross-reference
interchangeable
BA90101Interchangeable
interchangeable cross-reference
interchangeable
18M730Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20181-1001-1?
20181-1001-1 is a PISTON,VALVE.
What parts can replace 20181-1001-1?
There are 17 known substitutes for 20181-1001-1: A6162, 21078, 152C71 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20181-1001-1?
20181-1001-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-436-0148. 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