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PartsTable / COMPONENT / 9521 PIECE 35A
9521 PIECE 35A ✓ 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 TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-151-4479, 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
9521 PIECE 35A
NSN: 4730-01-151-4479
FSC: 4730
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922
NSN4730-01-151-4479
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 9521 PIECE 35A · 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
•
MATERIAL: COPPER ALLOY 922
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 922
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
480-9511Interchangeable
interchangeable cross-reference
interchangeable
A540Interchangeable
interchangeable cross-reference
interchangeable
9521Interchangeable
interchangeable cross-reference
interchangeable
J9521Interchangeable
interchangeable cross-reference
interchangeable
B107.46 TY4Interchangeable
interchangeable cross-reference
interchangeable
B107.410Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9521 PIECE 35A?
9521 PIECE 35A is a TAILPIECE,UNION.
What parts can replace 9521 PIECE 35A?
There are 22 known substitutes for 9521 PIECE 35A: 480-9511, A540, 9521 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9521 PIECE 35A?
9521 PIECE 35A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-151-4479. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026