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Technical Data Sheet
PartsTable / COMPONENT / 950158-18
950158-18 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING,BELLOWS ASSEMBLY is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-937-3007, 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
950158-18
NSN: 4730-00-937-3007
FSC: 4730
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN
NSN4730-00-937-3007
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 950158-18 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
34212Interchangeable
interchangeable cross-reference
interchangeable
905531Interchangeable
interchangeable cross-reference
interchangeable
SC1000Interchangeable
interchangeable cross-reference
interchangeable
34Interchangeable
interchangeable cross-reference
interchangeable
578-2.5Interchangeable
interchangeable cross-reference
interchangeable
198Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 950158-18?
950158-18 is a COUPLING,BELLOWS ASSEMBLY.
What parts can replace 950158-18?
There are 17 known substitutes for 950158-18: 34212, 905531, SC1000 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 950158-18?
950158-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-937-3007. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026