PartsTable
Technical Data Sheet
2503-20-20 ✓ 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

DISK,COMPRESSOR,AIRCRAFT GAS TUR. Key specifications include material: STEEL OVERALL, flow_angle: 90.0 DEGREES, leg_length: 2.062 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-019-1489, 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
2503-20-20
NSN: 4730-00-019-1489
FSC: 4730
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle90.0 DEGREES
leg_length2.062 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_styleDOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END
nominal_thread_size1.625 INCHES ALL ENDS IN
maximum_operating_temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
nondefinitive_spec/std_data10A FIGURE A
specification/standard_data96906-MS51527 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-019-1489
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2503-20-20 · 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
LEG LENGTH: 2.062 INCHES NOMINAL FIRST END IN
CONNECTION STYLE: FLARED (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA: 96906-MS51527 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA: 10A FIGURE A
NOMINAL THREAD SIZE: 1.625 INCHES ALL ENDS IN
FURNISHED ITEMS AND QUANTITY: 1 FLARED SLEEVE AND 1 LOCKNUT AND 1 SHORT COUPLING NUT AND 1 FLAT WASHER
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
LEG LENGTH2.062 INCHES NOMINAL FIRST END IN
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.250 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA96906-MS51527 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA10A FIGURE A
NOMINAL THREAD SIZE1.625 INCHES ALL ENDS IN
FURNISHED ITEMS AND QUANTITY1 FLARED SLEEVE AND 1 LOCKNUT AND 1 SHORT COUPLING NUT AND 1 FLAT WASHER
MATERIALSTEEL OVERALL
SEAT ANGLE37.0 DEGREES FIRST END
THREAD QUANTITY PER INCH12 ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
701607Interchangeable
interchangeable cross-reference
interchangeable
4730010260446Interchangeable
interchangeable cross-reference
interchangeable
4730PL0649962Interchangeable
interchangeable cross-reference
interchangeable
6BCACInterchangeable
interchangeable cross-reference
interchangeable
7-445-080645Interchangeable
interchangeable cross-reference
interchangeable
60244-90155Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2503-20-20?
2503-20-20 is a DISK,COMPRESSOR,AIRCRAFT GAS TUR.
What parts can replace 2503-20-20?
There are 30 known substitutes for 2503-20-20: 701607, 4730010260446, 4730PL0649962 and 27 more. Substitute compatibility should be verified for your specific system.
Is 2503-20-20 still available?
2503-20-20 is currently cancelled.
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