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C422-0-B2 — VALVE,STOP-CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

C422-0-B2: VALVE,STOP-CHECK.

The VALVE,STOP-CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 316 OVERALL, nut_style: HEXAGON, nut_height: 0.473 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, special_features: NUT HAS 2 HOLES. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-431-8323, 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
C422-0-B2
NSN: 4820-00-431-8323
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 316 OVERALL
nut_styleHEXAGON
nut_height0.473 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
special_featuresNUT HAS 2 HOLES
thread_directionRIGHT-HAND
width_across_flats0.861 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
nominal_thread_size0.562 INCHES IN
bearing_surface_typeCHAMFERED OR FLAT OR WASHER FACED
end_item_identificationAN/APG-82(V)
thread_quantity_per_inch18
NSN4820-00-431-8323
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C422-0-B2 · 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
SUBSTITUTES & CROSS-REFERENCES 9
DC20111PL20111Reference document
Same NSN cross-reference
Reference document — Secondary reference
B422-0-B1CID882039301Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
W03-2084B-02TS 33311-30Reference document
Same NSN cross-reference
Reference document — Secondary reference
80661-001-2IN CID 882039193Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
S807-9Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
80661-00 1-2INReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C422-0-B2?
C422-0-B2 is a VALVE,STOP-CHECK.
What parts can replace C422-0-B2?
There are 9 known substitutes for C422-0-B2: DC20111PL20111, B422-0-B1CID882039301, W03-2084B-02TS 33311-30 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C422-0-B2?
C422-0-B2 is cataloged in the U.S. Government catalog under NSN 4820-00-431-8323. 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.