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63 — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

63: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: COPPER ALLOY, seat_type: ANGLE, thread_size: 0.250, groove_width: 0.0625 INCHES NOMINAL IN, grommet_style: ROUND, hole_diameter: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-061-4769, 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
MRO→ MRO_GENERAL→ 63
NSN: 4820-00-061-4769
NIINs: 000614769, 000743084, 000820612, 001384995, 001529991, 001558720, 001740330, 001744554, 001753629, 002167932, 002302393, 002311911, 002646472, 002729002, 002773390, 002774134, 002924746, 003569844, 003688011, 004081939, 004142987, 004983868, 005194242, 005982159, 007396266, 007411934, 007524117, 007989078, 008214957, 008995921, 009529099, 009824666, 010083474, 010388981, 010803482, 011148195, 011332442, 011505444, 011792231, 014440901, 014777431, 014950504, 015258579, 015387639, 016164340
FSC: 4820 — Valves, Nonpowered
CAGE: 95318 — BRABANT BRASS MFG CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
seat_typeANGLE
thread_size0.250
groove_width0.0625 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter2.000 INCHES NOMINAL IN
overall_height0.2812 INCHES NOMINAL IN
overall_length2.062 INCHES NOMINAL IN
flange_thickness0.1094 INCHES NOMINAL IN
special_featuresCGA-540 STYLE FOR USE WITH UNION NUT 62,4730-01-151-9784
thread_directionRIGHT-HAND
end_connection_typeTHREADED
NSN4820-00-061-4769
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 63 · 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
•
FLOW CONTROL DEVICE: PLUG
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
•
MEDIA FOR WHICH DESIGNED: STEAM SINGLE RESPONSE
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPLUG
CONNECTION STYLEPLAIN (PIPE) FIRST END
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPTF FIRST END
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 6
K15-412Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
476Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-C-1203Reference document
Same NSN cross-reference
Reference document — Identification reference
476 3-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
5767Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35785-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63?
63 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 63?
There are 6 known substitutes for 63: K15-412, 476, MIL-C-1203 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63?
63 is cataloged in the U.S. Government catalog under NSN 4820-00-061-4769. This indicates validated use in U.S. government and defense supply chains.
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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.