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1598AS142-1 — VALVE,REGULATING,OXYGEN SYSTEM P

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1598AS142-1: VALVE,REGULATING,OXYGEN SYSTEM P.

VALVE,REGULATING,OXYGEN SYSTEM P. Key specifications include material: COPPER ALLOY AND PLASTIC TETRAFLUOROETHYLENE STEM, body_style: STRAIGHT THRU, end_item_identification: PREPROVISIONING SUPPORT NAVICP IS POE, media_for_which_designed: OXYGEN, LIQUID, criticality_code_justification: ZZZY, second_end_relationship_with_first_end: IDENTICAL. 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
1598AS142-1
NSN: 4820-01-426-7405
NIINs: 014267405, 014634902
FSC: 4820 — Valves, Nonpowered
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY AND PLASTIC TETRAFLUOROETHYLENE STEM
body_styleSTRAIGHT THRU
end_connection_quantity2
end_item_identificationPREPROVISIONING SUPPORT NAVICP IS POE
media_for_which_designedOXYGEN, LIQUID
criticality_code_justificationZZZY
second_end_relationship_with_first_endIDENTICAL
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
NSN4820-01-426-7405
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1598AS142-1 · 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
B-4JN-PM-BKReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 1598AS142-1?
1598AS142-1 is a VALVE,REGULATING,OXYGEN SYSTEM P.
What parts can replace 1598AS142-1?
There are 2 known substitutes for 1598AS142-1: B4JPM, B-4JN-PM-BK. Substitute compatibility should be verified for your specific system.
What is the NSN for 1598AS142-1?
1598AS142-1 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.