PartsTable
Technical Data Sheet
1551AS264 ✓ 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 TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, special_features: CLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-303-1234, 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
1551AS264
NSN: 4730-01-303-1234
FSC: 4730
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
special_featuresCLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE
nominal_thread_size0.125 INCHES SECOND END IN
nominal_overall_length1.290 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-303-1234
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1551AS264 · 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
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE
THREAD SERIES DESIGNATOR: UNF FIRST END
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLE: PLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE: 0.125 INCHES SECOND END IN
SEAT ANGLE: 12.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE
THREAD SERIES DESIGNATORUNF FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
CONNECTION STYLEFLARELESS (TUBE) FIRST END
SEAT ANGLE12.0 DEGREES FIRST END
SPECIAL FEATURESCLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE
THREAD CLASS3A FIRST END A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
533492Interchangeable
interchangeable cross-reference
interchangeable
9747652-4Interchangeable
interchangeable cross-reference
interchangeable
2076413Interchangeable
interchangeable cross-reference
interchangeable
1551AS264Interchangeable
interchangeable cross-reference
interchangeable
SS-400-1-4Interchangeable
interchangeable cross-reference
interchangeable
1551AS264-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1551AS264?
1551AS264 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 1551AS264?
There are 7 known substitutes for 1551AS264: 533492, 9747652-4, 2076413 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1551AS264?
1551AS264 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-303-1234. This indicates validated use in U.S. government and defense supply chains.
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