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7M7521-1 — CAP,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M7521-1: CAP,TUBE.

The CAP,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, thread_class: 3B INTERNAL, connection_style: PLAIN (OPTIONAL END), special_features: RED, style_designator: CAP, thread_direction: RIGHT-HAND INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-338-2225, 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
7M7521-1
NSN: 4730-01-338-2225
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
thread_class3B INTERNAL
connection_stylePLAIN (OPTIONAL END)
special_featuresRED
style_designatorCAP
thread_directionRIGHT-HAND INTERNAL
surface_treatmentANODIZE OVERALL
nominal_thread_size0.750 INCHES INTERNAL IN
thread_series_designatorUNF INTERNAL
material_document_and_classificationQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
tube_outside_diameter_for_which_designed0.500 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-A-8625,TYPE,2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-338-2225
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M7521-1 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE,2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: PLAIN (OPTIONAL END)
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CAP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
NOMINAL THREAD SIZE: 0.750 INCHES INTERNAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE,2,CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEPLAIN (OPTIONAL END)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.500 INCHES NOMINAL IN
STYLE DESIGNATORCAP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND INTERNAL
NOMINAL THREAD SIZE0.750 INCHES INTERNAL IN
SPECIAL FEATURESRED
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B INTERNAL
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
7M7521Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M7521-1?
7M7521-1 is a CAP,TUBE.
What parts can replace 7M7521-1?
There is 1 known substitute for 7M7521-1: 7M7521. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M7521-1?
7M7521-1 is cataloged in the U.S. Government catalog under NSN 4730-01-338-2225. This indicates validated use in U.S. government and defense supply chains.
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