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Technical Data Sheet
PartsTable / COMPONENT / 20021-8
20021-8 ✓ 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 TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, point_type: CONVENTIONAL, body_length: 0.768 INCHES MAXIMUM IN, point_angle: 118.0 DEGREES NOMINAL, shank_style: STANDARD TAPER W/TANG, flute_length: 10.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-157-0546, 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
20021-8
NSN: 4820-00-157-0546
FSC: 4820
CAGE: 11939 — KIDDE FIRE FIGHTING, INC. DIV NATIONAL FOAM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
point_typeCONVENTIONAL
body_length0.768 INCHES MAXIMUM IN
point_angle118.0 DEGREES NOMINAL
shank_styleSTANDARD TAPER W/TANG
flute_length10.250 INCHES NOMINAL IN
rating_methodWINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
turn_quantity160 SINGLE COMPONENT SINGLE SECONDARY
coil_form_typeSOLID SINGLE COMPONENT
flute_quantity2
inclosure_typeFULLY INCLOSED
overall_length17.375 INCHES NOMINAL IN
NSN4820-00-157-0546
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20021-8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
10116Interchangeable
interchangeable cross-reference
interchangeable
53236Interchangeable
interchangeable cross-reference
interchangeable
2511 2-1/8Interchangeable
interchangeable cross-reference
interchangeable
20021-8Interchangeable
interchangeable cross-reference
interchangeable
00-35491Interchangeable
interchangeable cross-reference
interchangeable
00-035491-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20021-8?
20021-8 is a TRANSFORMER,RADIO FREQUENCY.
What parts can replace 20021-8?
There are 11 known substitutes for 20021-8: 10116, 53236, 2511 2-1/8 and 8 more. Substitute compatibility should be verified for your specific system.
Is 20021-8 still available?
20021-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026