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Technical Data Sheet
PartsTable / COMPONENT / 21242-8-8
21242-8-8 ✓ 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 HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 12.0 DEGREES FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END, nominal_thread_size: 0.750 INCHES FIRST END IN, nominal_overall_length: 3.100 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-332-5938, 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
21242-8-8
NSN: 4730-01-332-5938
FSC: 4730
CAGE: 3P603 — RITTER TECHNOLOGY, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle12.0 DEGREES FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
nominal_thread_size0.750 INCHES FIRST END IN
nominal_overall_length3.100 INCHES IN
thread_series_designatorNPTF FIRST END
furnished_items_and_quantity1 SWIVEL NUT
nominal_inside_diameter_hose_accommodated0.406 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated0.750 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-01-332-5938
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21242-8-8 · 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
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
•
CONNECTION STYLE: SWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
•
SEAT ANGLE: 12.0 DEGREES FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPTF FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
CONNECTION STYLESWIVEL NUT, FLARELESS (SWIVEL NUT ATTACHMENT METHOD OPTIONAL) (TUBE) FIRST END
SEAT ANGLE12.0 DEGREES FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPTF FIRST END
FURNISHED ITEMS AND QUANTITY1 SWIVEL NUT
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.406 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B107.2 TY1CL2Interchangeable
interchangeable cross-reference
interchangeable
3KK82Interchangeable
interchangeable cross-reference
interchangeable
SIM422Interchangeable
interchangeable cross-reference
interchangeable
GGG-R-180 TY1CL1GRAInterchangeable
interchangeable cross-reference
interchangeable
21242Interchangeable
interchangeable cross-reference
interchangeable
GGG-R-180Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21242-8-8?
21242-8-8 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 21242-8-8?
There are 20 known substitutes for 21242-8-8: B107.2 TY1CL2, 3KK82, SIM422 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21242-8-8?
21242-8-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-332-5938. 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