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305-420044-3 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

305-420044-3: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 37.0 DEGREES, thread_class: 3B INTERNAL, connection_style: PRESSURE SEAL FLARED, special_features: DRILLED FOR ATTACHING SAFETYCHAIN, style_designator: CAP, TUBE, FLARED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-720-1508, 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
305-420044-3
NSN: 4730-00-720-1508
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 89372 — ROCKWELL INTERNATIONAL CORP NORTH AMERICAN AIRCRAFT OPNS (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
seat_angle37.0 DEGREES
thread_class3B INTERNAL
connection_stylePRESSURE SEAL FLARED
special_featuresDRILLED FOR ATTACHING SAFETYCHAIN
style_designatorCAP, TUBE, FLARED
thread_directionRIGHT-HAND INTERNAL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.438 INCHES INTERNAL IN
end_item_identificationSUPPORTS GRUMMAN AEROSPACE CORP A10A AIRCRAFT
thread_series_designatorUNF INTERNAL
specification/standard_data88044-AN929 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-720-1508
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 305-420044-3 · 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: PRESSURE SEAL FLARED
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CAP, TUBE, FLARED
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
NOMINAL THREAD SIZE: 0.438 INCHES INTERNAL IN
•
SEAT ANGLE: 37.0 DEGREES
•
SPECIFICATION/STANDARD DATA: 88044-AN929 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPRESSURE SEAL FLARED
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
STYLE DESIGNATORCAP, TUBE, FLARED
THREAD DIRECTIONRIGHT-HAND INTERNAL
NOMINAL THREAD SIZE0.438 INCHES INTERNAL IN
SEAT ANGLE37.0 DEGREES
SPECIFICATION/STANDARD DATA88044-AN929 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SPECIAL FEATURESDRILLED FOR ATTACHING SAFETYCHAIN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3B INTERNAL
SUBSTITUTES & CROSS-REFERENCES 7
AS4841Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN929-4JReference document
Same NSN cross-reference
Reference document — Secondary reference
AN929A4JReference document
Same NSN cross-reference
Reference document — Secondary reference
0717-4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
4FNTXSSReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SAE-AS4841Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 305-420044-3?
305-420044-3 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 305-420044-3?
There are 7 known substitutes for 305-420044-3: AS4841, AN929-4J, AN929A4J and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 305-420044-3?
305-420044-3 is cataloged in the U.S. Government catalog under NSN 4730-00-720-1508. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.