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PartsTable / COMPONENT / MIL-DTL-25427/1
MIL-DTL-25427/1 ✓ 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 MIL-DTL-25427/1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-684-7199, 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
MIL-DTL-25427/1
NSN: 4730-00-684-7199
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-DTL-25427/1
NSN4730-00-684-7199
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-DTL-25427/1 · 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: 3A FIRST FLUID END CONNECTION A
•
NOMINAL THREAD SIZE: 1.625 INCHES FIRST FLUID END CONNECTION IN
•
QUICK DISCONNECT METHOD: TWIST-LOCK ALL ENDS
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UN FIRST FLUID END CONNECTION
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES FIRST FLUID END CONNECTION IN
•
LEG LENGTH: 0.906 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A FIRST FLUID END CONNECTION A
NOMINAL THREAD SIZE1.625 INCHES FIRST FLUID END CONNECTION IN
OVERALL LENGTH4.919 INCHES NOMINAL IN
QUICK DISCONNECT METHODTWIST-LOCK ALL ENDS
MATERIALALUMINUM ALLOY OVERALL
THREAD SERIES DESIGNATORUN FIRST FLUID END CONNECTION
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST FLUID END CONNECTION IN
LEG LENGTH0.906 INCHES NOMINAL IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
THREAD QUANTITY PER INCH12 FIRST FLUID END CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
4202842Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-25427Interchangeable
interchangeable cross-reference
interchangeable
140-8DInterchangeable
interchangeable cross-reference
interchangeable
157-4DInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-25427Interchangeable
interchangeable cross-reference
interchangeable
3200-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-25427/1?
MIL-DTL-25427/1 is a MIL-DTL-25427/1.
What parts can replace MIL-DTL-25427/1?
There are 23 known substitutes for MIL-DTL-25427/1: 4202842, MIL-C-25427, 140-8D and 20 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-25427/1 still available?
MIL-DTL-25427/1 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