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B-4JN-PM-BK — VALVE,REGULATING,OXYGEN SYSTEM P

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B-4JN-PM-BK: VALVE,REGULATING,OXYGEN SYSTEM P.

VALVE,REGULATING,OXYGEN SYSTEM P. Key specifications include end_item_identification: PREPROVISIONING SUPPORT NAVICP IS POE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-426-7405, 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
B-4JN-PM-BK
NSN: 4820-01-426-7405
FSC: 4820 — Valves, Nonpowered
CAGE: 7A717 — LACOJA INC DIV PENN FLUID SYSTEM TECHNOLOGIES (USA)
SPECIFICATIONS
end_item_identificationPREPROVISIONING SUPPORT NAVICP IS POE
NSN4820-01-426-7405
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-4JN-PM-BK · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONPREPROVISIONING SUPPORT NAVICP IS POE
SUBSTITUTES & CROSS-REFERENCES 2
B4JPMReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1598AS142-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is B-4JN-PM-BK?
B-4JN-PM-BK is a VALVE,REGULATING,OXYGEN SYSTEM P.
What parts can replace B-4JN-PM-BK?
There are 2 known substitutes for B-4JN-PM-BK: B4JPM, 1598AS142-1. Substitute compatibility should be verified for your specific system.
What is the NSN for B-4JN-PM-BK?
B-4JN-PM-BK is cataloged in the U.S. Government catalog under NSN 4820-01-426-7405. 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.