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Technical Data Sheet
PartsTable / COMPONENT / MS20822-5-4J
MS20822-5-4J ✓ 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,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.062 INCHES MINIMUM AND 1.109 INCHES MAXIMUM SECOND END IN, seat_angle: 30.0 DEGREES SECOND END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL TUBE FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-121-0206, 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
MS20822-5-4J
NSN: 4730-00-121-0206
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
flow_angle90.0 DEGREES
leg_length1.062 INCHES MINIMUM AND 1.109 INCHES MAXIMUM SECOND END IN
seat_angle30.0 DEGREES SECOND END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL TUBE FIRST END
connection_styleINVERTED FLARE (PIPE) SECOND END
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES SECOND END IN
end_item_identificationAIRCRAFT APPLICATION
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
NSN4730-00-121-0206
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS20822-5-4J · 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 TUBE ACCOMMODATED: 0.312 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
•
SPECIFICATION/STANDARD DATA: 96906-MS20822 GOVERNMENT STANDARD
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES FIRST END IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA96906-MS20822 GOVERNMENT STANDARD
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
MATERIALSTEEL COMP 316 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
AS4842/1Interchangeable
Same NIIN cross-reference
interchangeable
AS5195Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS4842/1Interchangeable
Same NIIN cross-reference
interchangeable
AS5195K0504Interchangeable
Same NIIN cross-reference
interchangeable
MS20822-5-4CInterchangeable
Same NIIN cross-reference
interchangeable
MS20822-5-4KInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20822-5-4J?
MS20822-5-4J is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace MS20822-5-4J?
There are 6 known substitutes for MS20822-5-4J: AS4842/1, AS5195, SAE-AS4842/1 and 3 more. Substitute compatibility should be verified for your specific system.
Is MS20822-5-4J still available?
MS20822-5-4J 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