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PartsTable / COMPONENT / 280048 ITEM 20
280048 ITEM 20 ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, contact_length: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN, inside_diameter: 0.420 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, spring_free_length: 1.365 INCHES NOMINAL IN, material_document_and_classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-354-5315, 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
280048 ITEM 20
NSN: 4730-01-354-5315
FSC: 4730
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
contact_length0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
inside_diameter0.420 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
spring_free_length1.365 INCHES NOMINAL IN
material_document_and_classificationAMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-354-5315
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 280048 ITEM 20 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
275639Interchangeable
interchangeable cross-reference
interchangeable
66S00321690Interchangeable
interchangeable cross-reference
interchangeable
200816Interchangeable
interchangeable cross-reference
interchangeable
RV77F-280048-2FJInterchangeable
interchangeable cross-reference
interchangeable
280048Interchangeable
interchangeable cross-reference
interchangeable
2800485-0006Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 280048 ITEM 20?
280048 ITEM 20 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 280048 ITEM 20?
There are 21 known substitutes for 280048 ITEM 20: 275639, 66S00321690, 200816 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 280048 ITEM 20?
280048 ITEM 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-354-5315. 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