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Technical Data Sheet
PartsTable / COMPONENT / FBSS20
FBSS20 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, inside_diameter: 0.625 INCHES NOMINAL IN, style_designator: BAND, surface_treatment: PASSIVATE OVERALL, fastening_device_type: PLAIN SLOTTED HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-5913, 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
FBSS20
NSN: 4730-00-289-5913
FSC: 4730
CAGE: 66295 — WITTEK COMPANIES INTL INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
inside_diameter0.625 INCHES NOMINAL IN
style_designatorBAND
surface_treatmentPASSIVATE OVERALL
fastening_device_typePLAIN SLOTTED HEAD SCREW
NSN4730-00-289-5913
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FBSS20 · 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
•
FASTENING DEVICE TYPE: PLAIN SLOTTED HEAD SCREW
•
STYLE DESIGNATOR: BAND
•
INSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FASTENING DEVICE TYPEPLAIN SLOTTED HEAD SCREW
STYLE DESIGNATORBAND
INSIDE DIAMETER0.625 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
AN737RM44Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-6985Interchangeable
interchangeable cross-reference
interchangeable
AN737TW22Interchangeable
interchangeable cross-reference
interchangeable
WWD22Interchangeable
interchangeable cross-reference
interchangeable
AN737TM22Interchangeable
interchangeable cross-reference
interchangeable
D9484-57-41Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FBSS20?
FBSS20 is a CLAMP,HOSE.
What parts can replace FBSS20?
There are 17 known substitutes for FBSS20: AN737RM44, MIL-C-6985, AN737TW22 and 14 more. Substitute compatibility should be verified for your specific system.
Is FBSS20 still available?
FBSS20 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026