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5979278 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

5979278: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON, seat_angle: 60.0 DEGREES NOMINAL, thread_class: 2A A, overall_height: 1.625 INCHES NOMINAL IN, shank_diameter: 0.192 INCHES NOMINAL IN, outside_diameter: 0.468 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-230-2020, 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
5979278
NSN: 4820-01-230-2020
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON
seat_angle60.0 DEGREES NOMINAL
thread_class2A A
overall_height1.625 INCHES NOMINAL IN
shank_diameter0.192 INCHES NOMINAL IN
outside_diameter0.468 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_series_designatorUNF
flange_seat_to_disk_end_height1.270 INCHES NOMINAL IN
NSN4820-01-230-2020
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5979278 · 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
•
SHANK DIAMETER: 0.192 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 1.270 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.468 INCHES NOMINAL IN
•
SEAT ANGLE: 60.0 DEGREES NOMINAL
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD CLASS: 2A A
•
MATERIAL: PLASTIC POLYAMIDE NYLON
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.192 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT1.270 INCHES NOMINAL IN
OVERALL HEIGHT1.625 INCHES NOMINAL IN
OUTSIDE DIAMETER0.468 INCHES NOMINAL IN
SEAT ANGLE60.0 DEGREES NOMINAL
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD CLASS2A A
MATERIALPLASTIC POLYAMIDE NYLON
THREAD SERIES DESIGNATORUNF
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5979278?
5979278 is a DISK,VALVE.
What is the NSN for 5979278?
5979278 is cataloged in the U.S. Government catalog under NSN 4820-01-230-2020. 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.