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202 REV D SYM 21 — Technical Data Sheet

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— · 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

STRAP,TIE DOWN,ELECTRICAL COMPON. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 9-1/2, hole_diameter: 0.375 INCHES NOMINAL IN, inside_diameter: 0.625 INCHES NOMINAL IN, outside_diameter: 0.554 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-691-0473, 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
202 REV D SYM 21
NSN: 4820-01-691-0473
FSC: 4820
CAGE: 1Z740 — JOHN G PAPAILIAS CO INC DBA J G PAPAILIAS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity9-1/2
hole_diameter0.375 INCHES NOMINAL IN
inside_diameter0.625 INCHES NOMINAL IN
outside_diameter0.554 INCHES NOMINAL IN
special_featuresNHA: AN/BQQ-10(V)
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OVERALL
material_thickness0.125 INCHES NOMINAL IN
spring_free_length2.000 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
NSN4820-01-691-0473
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 202 REV D SYM 21 · 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 10
B750InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5310PL0670423InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FFW84CLACADPLTInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ASME B18.21.1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10134324InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
L-7-50-0-MInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 202 REV D SYM 21?
202 REV D SYM 21 is a STRAP,TIE DOWN,ELECTRICAL COMPON.
What parts can replace 202 REV D SYM 21?
There are 10 known substitutes for 202 REV D SYM 21: B750, 5310PL0670423, FFW84CLACADPLT and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 202 REV D SYM 21?
202 REV D SYM 21 is cataloged in the Federal Logistics Information System under NSN 4820-01-691-0473. 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: October 2026