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6406593-MTPD-A3 — PLATE,RETAINING,SHAFT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6406593-MTPD-A3: PLATE,RETAINING,SHAFT.

The PLATE,RETAINING,SHAFT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, inside_diameter: 1.250 INCHES NOMINAL IN, end_item_identification: SEAWOLF CLASS SSN, valve_design_control_activity: 53711, valve_model_number_for_which_designed: HP-134. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-429-0165, 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
6406593-MTPD-A3
NSN: 4820-01-429-0165
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY
inside_diameter1.250 INCHES NOMINAL IN
end_item_identificationSEAWOLF CLASS SSN
valve_design_control_activity53711
valve_model_number_for_which_designedHP-134
NSN4820-01-429-0165
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6406593-MTPD-A3 · 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
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: HP-134
•
INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
VALVE DESIGN CONTROL ACTIVITY: 53711
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
VALVE MODEL NUMBER FOR WHICH DESIGNEDHP-134
INSIDE DIAMETER1.250 INCHES NOMINAL IN
VALVE DESIGN CONTROL ACTIVITY53711
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
6406593Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
C791-6300 FN MTPD-A35Reference document
Same NSN cross-reference
Reference document — Secondary reference
556-6406593-MTPD-A35Same 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 6406593-MTPD-A3?
6406593-MTPD-A3 is a PLATE,RETAINING,SHAFT.
What parts can replace 6406593-MTPD-A3?
There are 3 known substitutes for 6406593-MTPD-A3: 6406593, C791-6300 FN MTPD-A35, 556-6406593-MTPD-A35. Substitute compatibility should be verified for your specific system.
What is the NSN for 6406593-MTPD-A3?
6406593-MTPD-A3 is cataloged in the U.S. Government catalog under NSN 4820-01-429-0165. 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.