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PartsTable / COMPONENT / AA2921C2A
AA2921C2A ✓ 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 COUPLING ASSEMBLY,HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_style: SOCKET (HOSE) ALL ENDS, nominal_overall_length: 2.047 INCHES IN, nondefinitive_spec/std_data: 1 TYPE AND 2 CLASS AND 5/8 SIZE, nominal_inside_diameter_hose_accommodated: 0.844 INCHES ALL ENDS IN, nominal_outside_diameter_hose_accommodated: 0.625 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-063-3912, 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
AA2921C2A
NSN: 4730-00-063-3912
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_styleSOCKET (HOSE) ALL ENDS
nominal_overall_length2.047 INCHES IN
nondefinitive_spec/std_data1 TYPE AND 2 CLASS AND 5/8 SIZE
nominal_inside_diameter_hose_accommodated0.844 INCHES ALL ENDS IN
nominal_outside_diameter_hose_accommodated0.625 INCHES ALL ENDS IN
NSN4730-00-063-3912
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA2921C2A · 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
•
NOMINAL OVERALL LENGTH: 2.047 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS AND 5/8 SIZE
•
MATERIAL: COPPER ALLOY OVERALL
•
CONNECTION STYLE: SOCKET (HOSE) ALL ENDS
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.844 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.625 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH2.047 INCHES IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS AND 5/8 SIZE
MATERIALCOPPER ALLOY OVERALL
CONNECTION STYLESOCKET (HOSE) ALL ENDS
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.844 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.625 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
WW-C-1692Interchangeable
interchangeable cross-reference
interchangeable
A-A-2921Interchangeable
interchangeable cross-reference
interchangeable
AA2921I2BInterchangeable
interchangeable cross-reference
interchangeable
234C3-4HOSEInterchangeable
interchangeable cross-reference
interchangeable
AA2921M2BInterchangeable
interchangeable cross-reference
interchangeable
234CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA2921C2A?
AA2921C2A is a COUPLING ASSEMBLY,HOSE.
What parts can replace AA2921C2A?
There are 14 known substitutes for AA2921C2A: WW-C-1692, A-A-2921, AA2921I2B and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA2921C2A?
AA2921C2A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-063-3912. 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