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P-400-375 — BALL,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

P-400-375: BALL,CHECK.

The BALL,CHECK is a the manufacturer industrial component. Key specifications include special_features: RUBBER, spherical_diameter: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-132-0749, 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
P-400-375
NSN: 4820-01-132-0749
FSC: 4820 — Valves, Nonpowered
CAGE: 06178 — ALTEC AIR, LLC DBA ALTEC LLC (USA)
SPECIFICATIONS
special_featuresRUBBER
spherical_diameter0.438 INCHES NOMINAL IN
NSN4820-01-132-0749
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P-400-375 · 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
•
SPHERICAL DIAMETER: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPHERICAL DIAMETER0.438 INCHES NOMINAL IN
SPECIAL FEATURESRUBBER
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 2
ST5079Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST6022Same 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 P-400-375?
P-400-375 is a BALL,CHECK.
What parts can replace P-400-375?
There are 2 known substitutes for P-400-375: ST5079, ST6022. Substitute compatibility should be verified for your specific system.
What is the NSN for P-400-375?
P-400-375 is cataloged in the U.S. Government catalog under NSN 4820-01-132-0749. 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.