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Technical Data Sheet
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39A38 ✓ 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 SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 630, flange_width: 0.141 INCHES NOMINAL IN, overall_length: 0.406 INCHES NOMINAL IN, style_designator: SLEEVE, seat_angle_in_deg: 33.0, surface_treatment: CADMIUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-9746, 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
39A38
NSN: 4730-00-277-9746
FSC: 4730
CAGE: 58588 — SURFACE COMBUSTION INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 630
flange_width0.141 INCHES NOMINAL IN
overall_length0.406 INCHES NOMINAL IN
style_designatorSLEEVE
seat_angle_in_deg33.0
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter0.383 INCHES NOMINAL IN
sleeve_outside_diameter0.297 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN4730-00-277-9746
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 39A38 · 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
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
SLEEVE OUTSIDE DIAMETER: 0.297 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 0.383 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 33.0
•
FLANGE WIDTH: 0.141 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: COPPER ALLOY 630
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.406 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER0.297 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER0.383 INCHES NOMINAL IN
SEAT ANGLE IN DEG33.0
FLANGE WIDTH0.141 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM
MATERIALCOPPER ALLOY 630
STYLE DESIGNATORSLEEVE
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
10178Interchangeable
interchangeable cross-reference
interchangeable
703.001671Interchangeable
interchangeable cross-reference
interchangeable
422860-1Interchangeable
interchangeable cross-reference
interchangeable
HT2804 REF._B2C 6717Interchangeable
interchangeable cross-reference
interchangeable
4730PL1519904Interchangeable
interchangeable cross-reference
interchangeable
BACSI3Z4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39A38?
39A38 is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace 39A38?
There are 24 known substitutes for 39A38: 10178, 703.001671, 422860-1 and 21 more. Substitute compatibility should be verified for your specific system.
Is 39A38 still available?
39A38 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