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B1879 — CARTRIDGE,VALVE SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B1879: CARTRIDGE,VALVE SAFETY RELIEF.

The CARTRIDGE,VALVE SAFETY RELIEF is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: ONE BODY,CRES,ONE BALL,PLASTIC,ONE SPRING HELICAL COMPRESSOR,STEEL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-061-1365, 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
B1879
NSN: 4820-01-061-1365
FSC: 4820 — Valves, Nonpowered
CAGE: 09176 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV PNEUMATIC DIVISION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionONE BODY,CRES,ONE BALL,PLASTIC,ONE SPRING HELICAL COMPRESSOR,STEEL
NSN4820-01-061-1365
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B1879 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ONE BODY,CRES,ONE BALL,PLASTIC,ONE SPRING HELICAL COMPRESSOR,STEEL
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONONE BODY,CRES,ONE BALL,PLASTIC,ONE SPRING HELICAL COMPRESSOR,STEEL
SUBSTITUTES & CROSS-REFERENCES 2
1785-1251PC1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1866-1346 ITEM 24Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B1879?
B1879 is a CARTRIDGE,VALVE SAFETY RELIEF.
What parts can replace B1879?
There are 2 known substitutes for B1879: 1785-1251PC1, 1866-1346 ITEM 24. Substitute compatibility should be verified for your specific system.
What is the NSN for B1879?
B1879 is cataloged in the U.S. Government catalog under NSN 4820-01-061-1365. 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.