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8FNML — CAP,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8FNML: CAP,TUBE.

The CAP,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2B INTERNAL, connection_style: PLAIN (OPTIONAL END), style_designator: CAP, thread_direction: RIGHT-HAND INTERNAL, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-537-2023, 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
8FNML
NSN: 4730-01-537-2023
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2B INTERNAL
connection_stylePLAIN (OPTIONAL END)
style_designatorCAP
thread_directionRIGHT-HAND INTERNAL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.813 INCHES INTERNAL IN
thread_quantity_per_inch16 INTERNAL
thread_series_designatorUNF INTERNAL
tube_outside_diameter_for_which_designed0.500 INCHES NOMINAL IN
NSN4730-01-537-2023
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8FNML · 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
•
CONNECTION STYLE: PLAIN (OPTIONAL END)
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CAP
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
NOMINAL THREAD SIZE: 0.813 INCHES INTERNAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD CLASS: 2B INTERNAL
•
THREAD QUANTITY PER INCH: 16 INTERNAL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (OPTIONAL END)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.500 INCHES NOMINAL IN
STYLE DESIGNATORCAP
THREAD DIRECTIONRIGHT-HAND INTERNAL
NOMINAL THREAD SIZE0.813 INCHES INTERNAL IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B INTERNAL
THREAD QUANTITY PER INCH16 INTERNAL
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNF INTERNAL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
20 250 100 2820Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8FNML?
8FNML is a CAP,TUBE.
What parts can replace 8FNML?
There is 1 known substitute for 8FNML: 20 250 100 2820. Substitute compatibility should be verified for your specific system.
What is the NSN for 8FNML?
8FNML is cataloged in the U.S. Government catalog under NSN 4730-01-537-2023. 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.