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512-6406356-AY99-MOD — VALVE,RELIEF,PRESSURE AND TEMPER

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

512-6406356-AY99-MOD: VALVE,RELIEF,PRESSURE AND TEMPER.

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: STEEL CORROSION RESISTING BODY, end_item_identification: VALVE RELF 4.50NPS 10.25T10.75PSI FLGE CRES, adjustable_pressure_range: 10.3 TO 10.7 CAMERA MOUNT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-545-4557, 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
512-6406356-AY99-MOD
NSN: 4820-01-545-4557
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
end_item_identificationVALVE RELF 4.50NPS 10.25T10.75PSI FLGE CRES
adjustable_pressure_range10.3 TO 10.7 CAMERA MOUNT
NSN4820-01-545-4557
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 512-6406356-AY99-MOD · 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
•
MATERIAL: STEEL CORROSION RESISTING BODY
•
ADJUSTABLE PRESSURE RANGE: 10.3 TO 10.7 CAMERA MOUNT
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONVALVE RELF 4.50NPS 10.25T10.75PSI FLGE CRES
MATERIALSTEEL CORROSION RESISTING BODY
ADJUSTABLE PRESSURE RANGE10.3 TO 10.7 CAMERA MOUNT
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
DF331067-AY99MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 512-6406356-AY99-MOD?
512-6406356-AY99-MOD is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 512-6406356-AY99-MOD?
There is 1 known substitute for 512-6406356-AY99-MOD: DF331067-AY99M. Substitute compatibility should be verified for your specific system.
What is the NSN for 512-6406356-AY99-MOD?
512-6406356-AY99-MOD is cataloged in the U.S. Government catalog under NSN 4820-01-545-4557. 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.