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Technical Data Sheet

AA537/M — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AA537/M: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, nominal_thread_size: 0.500 INCHES SECOND END IN, nominal_overall_length: 1.810 INCHES IN, thread_series_designator: NPTF SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-232-2419, 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
AA537/M
NSN: 4730-01-232-2419
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: KA007 — SALT SEPARATION SERVICES LTD (GBR)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.500 INCHES SECOND END IN
nominal_overall_length1.810 INCHES IN
thread_series_designatorNPTF SECOND END
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-232-2419
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA537/M · 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
•
CONNECTION STYLE: GROOVED (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.810 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.500 INCHES SECOND END IN
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGROOVED (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH1.810 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
CONNECTION TYPEUNTHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.500 INCHES SECOND END IN
MATERIALSTEEL COMP 316 OVERALL
THREAD SERIES DESIGNATORNPTF SECOND END
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
SS-4-TA-7-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AA537/M?
AA537/M is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace AA537/M?
There is 1 known substitute for AA537/M: SS-4-TA-7-8. Substitute compatibility should be verified for your specific system.
What is the NSN for AA537/M?
AA537/M is cataloged in the U.S. Government catalog under NSN 4730-01-232-2419. This indicates validated use in U.S. government and defense supply chains.
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