PartsTable
Technical Data Sheet
Download PDF

20566-H PIECE 53 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20566-H PIECE 53: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410, stem_actuating_end_type: SOCKET, valve_size_for_which_designed: 6.000 INCHES IN, valve_type_for_which_designed: GLOBE, material_document_and_classification: ASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE, valve_model_number_for_which_designed: 20566-H. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-196-3965, 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
20566-H PIECE 53
NSN: 4820-01-196-3965
FSC: 4820 — Valves, Nonpowered
CAGE: 04537 — ATWOOD & MORRILL CO., INC. DBA WEIR VALVES AND CONTROLS USA (USA)
SPECIFICATIONS
materialSTEEL COMP 410
stem_actuating_end_typeSOCKET
valve_size_for_which_designed6.000 INCHES IN
valve_type_for_which_designedGLOBE
material_document_and_classificationASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE
valve_model_number_for_which_designed20566-H
NSN4820-01-196-3965
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20566-H PIECE 53 · 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: GLOBE
•
STEM ACTUATING END TYPE: SOCKET
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 20566-H
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 6.000 INCHES IN
•
MATERIAL: STEEL COMP 410
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDGLOBE
STEM ACTUATING END TYPESOCKET
VALVE MODEL NUMBER FOR WHICH DESIGNED20566-H
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED6.000 INCHES IN
MATERIALSTEEL COMP 410
SUBSTITUTES & CROSS-REFERENCES 1
20566-HReference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 20566-H PIECE 53?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 20566-H PIECE 53?
20566-H PIECE 53 is a STEM,FLUID VALVE.
What parts can replace 20566-H PIECE 53?
There is 1 known substitute for 20566-H PIECE 53: 20566-H. Substitute compatibility should be verified for your specific system.
What is the NSN for 20566-H PIECE 53?
20566-H PIECE 53 is cataloged in the U.S. Government catalog under NSN 4820-01-196-3965. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 20566-H PIECE 53

✓ 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.