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PartsTable / COMPONENT / AS1738-1D12
AS1738-1D12 ✓ 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 NUT ASSEMBLY,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, thread_size: 1-1/16-12, thread_class: 2B, overall_length: 0.434 INCHES MAXIMUM IN, outside_diameter: 1.402 INCHES NOMINAL IN, special_features: W/ALUMINUM RETAINING RING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-068-5864, 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
AS1738-1D12
NSN: 4730-00-068-5864
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
thread_size1-1/16-12
thread_class2B
overall_length0.434 INCHES MAXIMUM IN
outside_diameter1.402 INCHES NOMINAL IN
special_featuresW/ALUMINUM RETAINING RING
style_designatorNUT ASSEMBLY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
screw_thread_series_designatorUN
tube_outside_diameter_for_which_designed0.750 INCHES NOMINAL IN
NSN4730-00-068-5864
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS1738-1D12 · 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
•
THREAD CLASS: 2B
•
STYLE DESIGNATOR: NUT ASSEMBLY
•
MATERIAL: ALUMINUM ALLOY 2024
•
SURFACE TREATMENT: ANODIZE
•
SCREW THREAD SERIES DESIGNATOR: UN
•
THREAD SIZE: 1-1/16-12
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
OVERALL LENGTH0.434 INCHES MAXIMUM IN
STYLE DESIGNATORNUT ASSEMBLY
SPECIAL FEATURESW/ALUMINUM RETAINING RING
MATERIALALUMINUM ALLOY 2024
SURFACE TREATMENTANODIZE
SCREW THREAD SERIES DESIGNATORUN
THREAD SIZE1-1/16-12
OUTSIDE DIAMETER1.402 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
SAE-AS1730Interchangeable
interchangeable cross-reference
interchangeable
AS1730Interchangeable
interchangeable cross-reference
interchangeable
AS1732Interchangeable
interchangeable cross-reference
interchangeable
83051-8Interchangeable
interchangeable cross-reference
interchangeable
SAE AS1732D08Interchangeable
interchangeable cross-reference
interchangeable
791-020-9002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS1738-1D12?
AS1738-1D12 is a NUT ASSEMBLY,TUBE COUPLING.
What parts can replace AS1738-1D12?
There are 18 known substitutes for AS1738-1D12: SAE-AS1730, AS1730, AS1732 and 15 more. Substitute compatibility should be verified for your specific system.
Is AS1738-1D12 still available?
AS1738-1D12 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