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Technical Data Sheet
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4HC279 — VALVE,SAFETY RELIEF

✓ Government record, cited
OSHKOSH CORP · GATE VALVE
PRODUCT OVERVIEW

4HC279: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a OSHKOSH CORP industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-214-8842, 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
4HC279
NSN: 4820-01-214-8842
FSC: 4820 — Valves, Nonpowered
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
Part Number4HC279
ManufacturerOSHKOSH CORP
NSN4820-01-214-8842
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4HC279 · OSHKOSH CORP ⚠ 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 5
390 0011Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
391 0326Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
2HC279Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
391 0334Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
18TN346Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4HC279?
4HC279 is a VALVE,SAFETY RELIEF manufactured by OSHKOSH CORP.
What parts can replace 4HC279?
There are 5 known substitutes for 4HC279: 390 0011, 391 0326, 2HC279 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4HC279?
4HC279 is cataloged in the U.S. Government catalog under NSN 4820-01-214-8842. This indicates validated use in U.S. government and defense supply chains.
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