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W55 1IN — VALVE,GATE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

W55 1IN: VALVE,GATE.

The VALVE,GATE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY DISK, stem_type: RISING, valve_size: 1.000 INCHES IN, bonnet_type: INSIDE SCREW, special_features: CLASS 125; INTEGRAL SEATS;THREADED ENDS, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-463-9102, 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
W55 1IN
NSN: 4820-01-463-9102
FSC: 4820 — Valves, Nonpowered
CAGE: 63686 — THE WALWORTH COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY DISK
stem_typeRISING
valve_size1.000 INCHES IN
bonnet_typeINSIDE SCREW
special_featuresCLASS 125; INTEGRAL SEATS;THREADED ENDS
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
inlet_relationship_with_outletIDENTICAL
NSN4820-01-463-9102
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: W55 1IN · 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
•
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
•
STEM TYPE: RISING
•
VALVE SIZE: 1.000 INCHES IN
•
BONNET TYPE: INSIDE SCREW
•
BONNET ATTACHMENT METHOD: THREADED
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
INLET RELATIONSHIP WITH OUTLETIDENTICAL
STEM TYPERISING
VALVE SIZE1.000 INCHES IN
BONNET TYPEINSIDE SCREW
SPECIAL FEATURESCLASS 125; INTEGRAL SEATS;THREADED ENDS
BONNET ATTACHMENT METHODTHREADED
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY DISK
MATERIALSILICON AND COPPER ALLOY STEM
VALVE OPERATION METHODMANUAL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W55 1IN?
W55 1IN is a VALVE,GATE.
What is the NSN for W55 1IN?
W55 1IN is cataloged in the U.S. Government catalog under NSN 4820-01-463-9102. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.