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294S1-2 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

294S1-2: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_height: 0.234 INCHES NOMINAL IN, inside_diameter: 0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN, outside_diameter: 0.812 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL, style_designator: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-142-2892, 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
294S1-2
NSN: 4820-00-142-2892
FSC: 4820 — Valves, Nonpowered
CAGE: 75144 — JENKINS BROS (USA)
SPECIFICATIONS
materialRUBBER
overall_height0.234 INCHES NOMINAL IN
inside_diameter0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
outside_diameter0.812 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorPLAIN
media_for_which_designedWATER
criticality_code_justificationFEAT
NSN4820-00-142-2892
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 294S1-2 · 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
•
OUTSIDE DIAMETER: 0.812 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: PLAIN
•
INSIDE DIAMETER: 0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
•
MEDIA FOR WHICH DESIGNED: WATER
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.234 INCHES NOMINAL IN
OUTSIDE DIAMETER0.812 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORPLAIN
INSIDE DIAMETER0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
MEDIA FOR WHICH DESIGNEDWATER
MATERIALRUBBER
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
FD9-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
B384PC13Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 294S1-2?
294S1-2 is a DISK,VALVE.
What parts can replace 294S1-2?
There are 2 known substitutes for 294S1-2: FD9-7, B384PC13. Substitute compatibility should be verified for your specific system.
What is the NSN for 294S1-2?
294S1-2 is cataloged in the U.S. Government catalog under NSN 4820-00-142-2892. 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.