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Technical Data Sheet
PartsTable / COMPONENT / 203995
203995 ✓ 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,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 0.625 INCHES NOMINAL IN, outside_diameter: 0.707 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-063-9672, 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
203995
NSN: 4730-00-063-9672
FSC: 4730
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter0.625 INCHES NOMINAL IN
outside_diameter0.707 INCHES NOMINAL IN
material_diameter0.041 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
NSN4730-00-063-9672
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 203995 · 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: PLAIN (PIPE) SECOND END
•
LEG LENGTH: 0.734 INCHES NOMINAL ALL ENDS IN
•
THREAD CLASS: 2A FIRST END A
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.375 INCHES THIRD END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) SECOND END
LEG LENGTH0.734 INCHES NOMINAL ALL ENDS IN
THREAD CLASS2A FIRST END A
THREAD CLASS2A THIRD END A
CONNECTION STYLEFLARED (TUBE) THIRD END
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES THIRD END IN
SEAT ANGLE45.0 DEGREES FIRST END
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
29702Interchangeable
interchangeable cross-reference
interchangeable
14945Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
203995Interchangeable
interchangeable cross-reference
interchangeable
280252Interchangeable
interchangeable cross-reference
interchangeable
418567Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203995?
203995 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 203995?
There are 13 known substitutes for 203995: 29702, 14945, AMS-QQ-A-200/11 and 10 more. Substitute compatibility should be verified for your specific system.
Is 203995 still available?
203995 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