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634533 — PISTON,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

634533: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include physical_form: LIQUID, part_name_assigned_by_controlling_agency: HP 364XL. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-441-7052, 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
634533
NSN: 4810-00-441-7052
NIINs: 004417052, 015872121
FSC: 4810 — Valves, Powered
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
physical_formLIQUID
part_name_assigned_by_controlling_agencyHP 364XL
NSN4810-00-441-7052
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 634533 · 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 TYPE FOR WHICH DESIGNED: PRESSURE REDUCING
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDPRESSURE REDUCING
SPECIAL FEATURESFOUND IN T.O. 9P2-3-2-103;T.O. NAME PISTON-ASSY OF BLEED ACTUATOR; THE PISTON IS LOCATED IN THE CENTER OF THE BLEED ACTUATOR AND CONTROLS THE BLEED VALVE
END ITEM IDENTIFICATION29951734005 671702 CONTROL ASSY,COMPRESSOR BLEED VALVE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 634533?
634533 is a PISTON,VALVE.
What is the NSN for 634533?
634533 is cataloged in the U.S. Government catalog under NSN 4810-00-441-7052. 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.