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4549B — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4549B: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_height: 0.463 INCHES NOMINAL IN, inside_diameter: 0.164 INCHES NOMINAL IN, outside_diameter: 0.700 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-192-4715, 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
4549B
NSN: 4820-01-192-4715
FSC: 4820 — Valves, Nonpowered
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_height0.463 INCHES NOMINAL IN
inside_diameter0.164 INCHES NOMINAL IN
outside_diameter0.700 INCHES NOMINAL IN
NSN4820-01-192-4715
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4549B · 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
•
OUTSIDE DIAMETER: 0.700 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.164 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.463 INCHES NOMINAL IN
OUTSIDE DIAMETER0.700 INCHES NOMINAL IN
INSIDE DIAMETER0.164 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
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 1
4820PL1328432Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 4549B?
4549B is a DISK,VALVE.
What parts can replace 4549B?
There is 1 known substitute for 4549B: 4820PL1328432. Substitute compatibility should be verified for your specific system.
What is the NSN for 4549B?
4549B is cataloged in the U.S. Government catalog under NSN 4820-01-192-4715. 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.