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A-4738 ✓ 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 SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include style_designator: FLARE SEAL BONNET, nondefinitive_spec/std_data: 39 FIGURE, specification/standard_data: 81343-J513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD, tube_outside_diameter_for_which_designed: 0.750 INCHES NOMINAL 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 4730-00-801-5714, 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
A-4738
NSN: 4730-00-801-5714
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
style_designatorFLARE SEAL BONNET
nondefinitive_spec/std_data39 FIGURE
specification/standard_data81343-J513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
tube_outside_diameter_for_which_designed0.750 INCHES NOMINAL IN
NSN4730-00-801-5714
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A-4738 · 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.750 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81343-J513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 39 FIGURE
•
STYLE DESIGNATOR: FLARE SEAL BONNET
TECHNICAL CHARACTERISTICS (FLIS)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81343-J513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA39 FIGURE
STYLE DESIGNATORFLARE SEAL BONNET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
6952Interchangeable
interchangeable cross-reference
interchangeable
6962Interchangeable
interchangeable cross-reference
interchangeable
0106962Interchangeable
interchangeable cross-reference
interchangeable
0106962-4Interchangeable
interchangeable cross-reference
interchangeable
106962Interchangeable
interchangeable cross-reference
interchangeable
MILE1-1071Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-4738?
A-4738 is a SHAFT,SHOULDERED.
What parts can replace A-4738?
There are 21 known substitutes for A-4738: 6952, 6962, 0106962 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-4738?
A-4738 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-801-5714. 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