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NB21639723 — COIL,RADIO FREQUENCY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NB21639723: COIL,RADIO FREQUENCY.

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flange_diameter: 2.969 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.094 INCHES NOMINAL IN, body_inside_diameter: 1.938 INCHES NOMINAL IN, body_outside_diameter: 2.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-474-0283, 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
NB21639723
NSN: 4820-00-474-0283
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_diameter2.969 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.094 INCHES NOMINAL IN
body_inside_diameter1.938 INCHES NOMINAL IN
body_outside_diameter2.188 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.328 INCHES NOMINAL IN
NSN4820-00-474-0283
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NB21639723 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.328 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.969 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 1.938 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.094 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.328 INCHES NOMINAL IN
FLANGE DIAMETER2.969 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.188 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER1.938 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.094 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 2
15397Reference document
Same NSN cross-reference
Reference document — Secondary reference
21539723Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 NB21639723?
NB21639723 is a COIL,RADIO FREQUENCY.
What parts can replace NB21639723?
There are 2 known substitutes for NB21639723: 15397, 21539723. Substitute compatibility should be verified for your specific system.
What is the NSN for NB21639723?
NB21639723 is cataloged in the U.S. Government catalog under NSN 4820-00-474-0283. 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.