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PartsTable / COMPONENT / AN929-L4J
AN929-L4J ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 37.0 DEGREES, thread_class: 3B INTERNAL, connection_style: PRESSURE SEAL FLARED, style_designator: CAP, TUBE, FLARED, thread_direction: RIGHT-HAND INTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-984-4885, 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
AN929-L4J
NSN: 4730-00-984-4885
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES
thread_class3B INTERNAL
connection_stylePRESSURE SEAL FLARED
style_designatorCAP, TUBE, FLARED
thread_directionRIGHT-HAND INTERNAL
nominal_thread_size0.438 INCHES INTERNAL IN
thread_series_designatorUNF INTERNAL
tube_outside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN4730-00-984-4885
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN929-L4J · 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: STEEL CORROSION RESISTING OVERALL
•
CONNECTION STYLE: PRESSURE SEAL FLARED
•
THREAD CLASS: 3B INTERNAL
•
NOMINAL THREAD SIZE: 0.438 INCHES INTERNAL IN
•
SEAT ANGLE: 37.0 DEGREES
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF INTERNAL
•
STYLE DESIGNATOR: CAP, TUBE, FLARED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING OVERALL
CONNECTION STYLEPRESSURE SEAL FLARED
THREAD CLASS3B INTERNAL
NOMINAL THREAD SIZE0.438 INCHES INTERNAL IN
SEAT ANGLE37.0 DEGREES
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF INTERNAL
STYLE DESIGNATORCAP, TUBE, FLARED
THREAD DIRECTIONRIGHT-HAND INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
R1015Interchangeable
interchangeable cross-reference
interchangeable
1N2980RBInterchangeable
interchangeable cross-reference
interchangeable
335C785H04Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-27267Interchangeable
interchangeable cross-reference
interchangeable
GH510BM5Interchangeable
interchangeable cross-reference
interchangeable
666-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN929-L4J?
AN929-L4J is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AN929-L4J?
There are 12 known substitutes for AN929-L4J: R1015, 1N2980RB, 335C785H04 and 9 more. Substitute compatibility should be verified for your specific system.
Is AN929-L4J still available?
AN929-L4J is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026