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Technical Data Sheet

MS20826 — Technical Data Sheet

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— · 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 304 OVERALL, leg_length: 1.781 INCHES NOMINAL THIRD END IN, seat_angle: 37.0 DEGREES THIRD END, thread_class: 3A THIRD END A, connection_type: THREADED EXTERNAL TUBE THIRD END, connection_style: FLARED (TUBE) FIRST END. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-277-5039, 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
MS20826
NSN: 4730-00-277-5039
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
leg_length1.781 INCHES NOMINAL THIRD END IN
seat_angle37.0 DEGREES THIRD END
thread_class3A THIRD END A
connection_typeTHREADED EXTERNAL TUBE THIRD END
connection_styleFLARED (TUBE) FIRST END
surface_treatmentPASSIVATE INSIDE
nominal_thread_size1.312 INCHES FIRST END IN
thread_quantity_per_inch12 THIRD END
thread_series_designatorANPT SECOND END
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated1.000 INCHES THIRD END IN
NSN4730-00-277-5039
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS20826 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.125 INCHES SECOND END IN
•
CONNECTION STYLE: PLAIN (PIPE) SECOND END
•
THREAD SERIES DESIGNATOR: ANPT SECOND END
•
LEG LENGTH: 0.759 INCHES MINIMUM AND 0.797 INCHES MAXIMUM SECOND END IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE THIRD END
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
THREAD SERIES DESIGNATORANPT SECOND END
LEG LENGTH0.759 INCHES MINIMUM AND 0.797 INCHES MAXIMUM SECOND END IN
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
LEG LENGTH0.859 INCHES MINIMUM AND 0.906 INCHES MAXIMUM THIRD END IN
THREAD CLASS3A FIRST END A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AS4842/1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS5198J161616InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SAE-AS4842/1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8-856-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AN826-4SInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
MILF5509InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20826?
MS20826 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace MS20826?
There are 9 known substitutes for MS20826: AS4842/1, AS5198J161616, SAE-AS4842/1 and 6 more. Substitute compatibility should be verified for your specific system.
Is MS20826 still available?
MS20826 is currently cancelled.
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