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15977A — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

15977A: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_height: 3.410 INCHES NOMINAL IN, outside_diameter: 0.378 INCHES NOMINAL IN, special_features: FOR GATE VALVE FOR FUEL SYSTEM, style_designator: FLAT WEDGE, material_thickness: 0.074 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-384-8848, 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
15977A
NSN: 4820-01-384-8848
FSC: 4820 — Valves, Nonpowered
CAGE: 73760 — ITT AEROSPACE CONTROLS LLC DBA ITT AEROSPACE CONTROLS UNIT S (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_height3.410 INCHES NOMINAL IN
outside_diameter0.378 INCHES NOMINAL IN
special_featuresFOR GATE VALVE FOR FUEL SYSTEM
style_designatorFLAT WEDGE
material_thickness0.074 INCHES NOMINAL IN
NSN4820-01-384-8848
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 15977A · 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: 0.378 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT WEDGE
•
MATERIAL THICKNESS: 0.074 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT3.410 INCHES NOMINAL IN
OUTSIDE DIAMETER0.378 INCHES NOMINAL IN
STYLE DESIGNATORFLAT WEDGE
MATERIAL THICKNESS0.074 INCHES NOMINAL IN
SPECIAL FEATURESFOR GATE VALVE FOR FUEL SYSTEM
MATERIALSTEEL CORROSION RESISTING
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 15977A?
15977A is a DISK,VALVE.
What is the NSN for 15977A?
15977A is cataloged in the U.S. Government catalog under NSN 4820-01-384-8848. 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.