PartsTable
Technical Data Sheet
20634-12-12-NA ✓ 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: NICKEL ALLOY A OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END, nominal_thread_size: 1.062 INCHES FIRST END IN, special_test_features: QUALITY CONTROLLED IN ACCORDANCE WITH NAVY LEVEL 1 ASSURANCE GUIDE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-070-1254, 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
20634-12-12-NA
NSN: 4730-00-070-1254
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY A OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
nominal_thread_size1.062 INCHES FIRST END IN
special_test_featuresQUALITY CONTROLLED IN ACCORDANCE WITH NAVY LEVEL 1 ASSURANCE GUIDE
nominal_overall_length3.860 INCHES IN
thread_quantity_per_inch12 FIRST END
thread_series_designatorUN FIRST END
nondefinitive_spec/std_data2 CLASS AND 12-12 SIZE AND A TYPE
furnished_items_and_quantity1 SOCKET
criticality_code_justificationZZZY
NSN4730-00-070-1254
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20634-12-12-NA · 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
NONDEFINITIVE SPEC/STD DATA: 2 CLASS AND 12-12 SIZE AND A TYPE
CRITICALITY CODE JUSTIFICATION: ZZZY
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE: 37.0 DEGREES FIRST END
THREAD SERIES DESIGNATOR: UN FIRST END
THREAD CLASS: 2B FIRST END
NOMINAL THREAD SIZE: 1.062 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA2 CLASS AND 12-12 SIZE AND A TYPE
CRITICALITY CODE JUSTIFICATIONZZZY
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE37.0 DEGREES FIRST END
THREAD SERIES DESIGNATORUN FIRST END
THREAD CLASS2B FIRST END
NOMINAL THREAD SIZE1.062 INCHES FIRST END IN
MATERIALNICKEL ALLOY A OVERALL
CONNECTION STYLEPLAIN (HOSE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
4-4730-12Interchangeable
interchangeable cross-reference
interchangeable
CMC-4-5503-12-12Interchangeable
interchangeable cross-reference
interchangeable
20634-12-12-NAL1Interchangeable
Same NIIN cross-reference
interchangeable
MILH24135Interchangeable
Same NIIN cross-reference
interchangeable
4-4730-12L1Interchangeable
Same NIIN cross-reference
interchangeable
20634-12-12ML1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20634-12-12-NA?
20634-12-12-NA is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 20634-12-12-NA?
There are 7 known substitutes for 20634-12-12-NA: 4-4730-12, CMC-4-5503-12-12, 20634-12-12-NAL1 and 4 more. Substitute compatibility should be verified for your specific system.
Is 20634-12-12-NA still available?
20634-12-12-NA is currently cancelled.
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