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PartsTable / COMPONENT / 4H90621-101B
4H90621-101B ✓ 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

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include reference_number_differentiating_characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-161-4098, 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
4H90621-101B
NSN: 4820-00-161-4098
FSC: 4820
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
special_featuresSIX PORT HOLES PER AND 10050-10,THREE 0.245 IN.MIN,0.251 IN.MAX,DIA MTG HOLES IRREGULARLY SPACED,9.97 IN.LG,2.70 IN.W,2.00 IN.H,20 GAL PER MIN.;COGNIZANT SERVICE:AIR FORCE IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY SOURCE CONTROL DRAWING
NSN4820-00-161-4098
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4H90621-101B · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY SOURCE CONTROL DRAWING
SPECIAL FEATURESSIX PORT HOLES PER AND 10050-10,THREE 0.245 IN.MIN,0.251 IN.MAX,DIA MTG HOLES IRREGULARLY SPACED,9.97 IN.LG,2.70 IN.W,2.00 IN.H,20 GAL PER MIN.;COGNIZANT SERVICE:AIR FORCE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
L-03-04-0007Interchangeable
interchangeable cross-reference
interchangeable
50461Interchangeable
interchangeable cross-reference
interchangeable
D30487PC3Interchangeable
interchangeable cross-reference
interchangeable
S113937Interchangeable
interchangeable cross-reference
interchangeable
S93711Interchangeable
interchangeable cross-reference
interchangeable
54725Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4H90621-101B?
4H90621-101B is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 4H90621-101B?
There are 9 known substitutes for 4H90621-101B: L-03-04-0007, 50461, D30487PC3 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4H90621-101B?
4H90621-101B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-161-4098. 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