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MIL-DTL-1183/3 — Technical Data Sheet

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— · 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 BRAZING ALLOY,SILVER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 903 OVERALL, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: STREAMLINED W/ ONE BRAZING RING (TUBE) ALL ENDS, style_designator: PLAIN, operating_pressure: 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-542-5100, 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-1183/3
NSN: 4730-00-542-5100
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 903 OVERALL
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSTREAMLINED W/ ONE BRAZING RING (TUBE) ALL ENDS
style_designatorPLAIN
operating_pressure225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length2.880 INCHES IN
media_for_which_designedSTEAM FIRST RESPONSE
nondefinitive_spec/std_dataA TYPE
specification/standard_data81349-MIL-F-1183 GOVERNMENT SPECIFICATION
furnished_items_and_quantity2 PREINSERTED BRAZING RING
departure_from_cited_designatorWITH PREINSERTED BRAZING RINGS
NSN4730-00-542-5100
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-DTL-1183/3 · 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
•
FURNISHED ITEMS AND QUANTITY: 2 BRAZING RING
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-1183H GOVERNMENT SPECIFICATION
•
MATERIAL: COPPER ALLOY 903 OR COPPER ALLOY 922 OVERALL
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
•
NOMINAL OVERALL LENGTH: 0.970 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY2 BRAZING RING
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
END ITEM IDENTIFICATION23N SHIP, OHIO CLASS SSN (TRIDENT)
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
SPECIFICATION/STANDARD DATA81349-MIL-F-1183H GOVERNMENT SPECIFICATION
MATERIALCOPPER ALLOY 903 OR COPPER ALLOY 922 OVERALL
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
NOMINAL OVERALL LENGTH0.970 INCHES IN
STYLE DESIGNATORPLAIN W/CONCAVE SIDES
NONDEFINITIVE SPEC/STD DATA1 FIGURE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
4041Interchangeable
interchangeable cross-reference
interchangeable
PQ-32-3Interchangeable
interchangeable cross-reference
interchangeable
242016P1Interchangeable
interchangeable cross-reference
interchangeable
114438-3Interchangeable
interchangeable cross-reference
interchangeable
004041Interchangeable
interchangeable cross-reference
interchangeable
FF-B-588Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1183/3?
MIL-DTL-1183/3 is a BRAZING ALLOY,SILVER.
What parts can replace MIL-DTL-1183/3?
There are 25 known substitutes for MIL-DTL-1183/3: 4041, PQ-32-3, 242016P1 and 22 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-1183/3 still available?
MIL-DTL-1183/3 is currently cancelled.
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Last verified: September 2026