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1871PART1634 ✓ 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 DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER AND PLASTIC POLYAMIDE NYLON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-033-2207, 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
1871PART1634
NSN: 4820-01-033-2207
FSC: 4820
CAGE: 71342 — IMI CASH VALVE INC (USA)
SPECIFICATIONS
materialRUBBER AND PLASTIC POLYAMIDE NYLON
NSN4820-01-033-2207
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1871PART1634 · 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: RUBBER AND PLASTIC POLYAMIDE NYLON
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER AND PLASTIC POLYAMIDE NYLON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
121832Interchangeable
interchangeable cross-reference
interchangeable
5305000121832Interchangeable
interchangeable cross-reference
interchangeable
JHP13-402Interchangeable
interchangeable cross-reference
interchangeable
1154Interchangeable
interchangeable cross-reference
interchangeable
87-0457Interchangeable
interchangeable cross-reference
interchangeable
1-871Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1871PART1634?
1871PART1634 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 1871PART1634?
There are 20 known substitutes for 1871PART1634: 121832, 5305000121832, JHP13-402 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1871PART1634?
1871PART1634 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-033-2207. 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