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PartsTable / COMPONENT / 820-5348568-31
820-5348568-31 ✓ 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 FITTING,LUBRICATION is a the manufacturer industrial component. Key specifications include height: 0.969 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, style_designator: STRAIGHT, width_across_flats: 0.437 INCHES NOMINAL IN, nominal_thread_size: 0.125 INCHES IN, screw_thread_series_designator: NPT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-3944, 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
820-5348568-31
NSN: 4730-01-075-3944
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
height0.969 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
style_designatorSTRAIGHT
width_across_flats0.437 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
screw_thread_series_designatorNPT
reference_number_differentiating_characteristicsFREE OF MERCURY CONTAMINATION
NSN4730-01-075-3944
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 820-5348568-31 · 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
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
WIDTH ACROSS FLATS: 0.437 INCHES NOMINAL IN
•
HEIGHT: 0.969 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: FREE OF MERCURY CONTAMINATION
TECHNICAL CHARACTERISTICS (FLIS)
SCREW THREAD SERIES DESIGNATORNPT
NOMINAL THREAD SIZE0.125 INCHES IN
WIDTH ACROSS FLATS0.437 INCHES NOMINAL IN
HEIGHT0.969 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSTRAIGHT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSFREE OF MERCURY CONTAMINATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
ST7M298-1Interchangeable
interchangeable cross-reference
interchangeable
317-6709-805881RInterchangeable
interchangeable cross-reference
interchangeable
M336Interchangeable
interchangeable cross-reference
interchangeable
820-4384241Interchangeable
interchangeable cross-reference
interchangeable
M3/36Interchangeable
interchangeable cross-reference
interchangeable
6670PL0877590Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 820-5348568-31?
820-5348568-31 is a FITTING,LUBRICATION.
What parts can replace 820-5348568-31?
There are 8 known substitutes for 820-5348568-31: ST7M298-1, 317-6709-805881R, M336 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 820-5348568-31?
820-5348568-31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-075-3944. 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