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PartsTable / COMPONENT / RK119B
RK119B ✓ 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

PARTS KIT,PRESSURE REGULATING VA. Key specifications include nonsupply_items_and_quantities: DIAPHRAGM 1; STRAINER SCREEN 1; GASKET 1; PLUNGER ASSY W/2 O-RINGS 1. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-457-1599, 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
RK119B
NSN: 4820-00-457-1599
FSC: 4820
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
component_quantity4
nonsupply_items_and_quantitiesDIAPHRAGM 1; STRAINER SCREEN 1; GASKET 1; PLUNGER ASSY W/2 O-RINGS 1
NSN4820-00-457-1599
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: RK119B · 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
•
NONSUPPLY ITEMS AND QUANTITIES: DIAPHRAGM 1; STRAINER SCREEN 1; GASKET 1; PLUNGER ASSY W/2 O-RINGS 1
•
COMPONENT QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
NONSUPPLY ITEMS AND QUANTITIESDIAPHRAGM 1; STRAINER SCREEN 1; GASKET 1; PLUNGER ASSY W/2 O-RINGS 1
COMPONENT QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5454Interchangeable
interchangeable cross-reference
interchangeable
054540001Interchangeable
interchangeable cross-reference
interchangeable
204-663Interchangeable
interchangeable cross-reference
interchangeable
C-116Interchangeable
interchangeable cross-reference
interchangeable
V71041NSR05N30C3MGCInterchangeable
interchangeable cross-reference
interchangeable
V71041NSR05Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RK119B?
RK119B is a PARTS KIT,PRESSURE REGULATING VA.
What parts can replace RK119B?
There are 14 known substitutes for RK119B: 5454, 054540001, 204-663 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RK119B?
RK119B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-457-1599. 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