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Technical Data Sheet
PartsTable / COMPONENT / MIL-F-1183H
MIL-F-1183H ✓ 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 BRAZING ALLOY,SILVER is a the manufacturer industrial component. Key specifications include thread_class: 2B ALL ENDS, nominal_thread_size: 0.398 INCHES ALL ENDS IN, thread_quantity_per_inch: 16 ALL ENDS, nondefinitive_spec/std_data: 27 FIGURE, specification/standard_data: 81349-MIL-F-1183G GOVERNMENT SPECIFICATION G, material_document_and_classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BALL BEARING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-542-5101, 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-F-1183H
NSN: 4730-00-542-5101
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
thread_class2B ALL ENDS
nominal_thread_size0.398 INCHES ALL ENDS IN
thread_quantity_per_inch16 ALL ENDS
nondefinitive_spec/std_data27 FIGURE
specification/standard_data81349-MIL-F-1183G GOVERNMENT SPECIFICATION G
material_document_and_classificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BALL BEARING
NSN4730-00-542-5101
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-F-1183H · 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 TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
MAXIMUM OPERATING TEMP: 425.0 FAHRENHEIT FIRST RESPONSE DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 FED SPEC 1ST MATERIAL RESPONSE OR ASTM-B61 ASSN STD 2ND MATERIAL RESPONSE OR ASTM-B62 ASSN STD 3RD MATERIAL RESPONSE OVERALL
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
CONNECTION STYLE: STREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT FIRST RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC 1ST MATERIAL RESPONSE OR ASTM-B61 ASSN STD 2ND MATERIAL RESPONSE OR ASTM-B62 ASSN STD 3RD MATERIAL RESPONSE OVERALL
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES ALL ENDS IN
CONNECTION STYLESTREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
END ITEM IDENTIFICATIONFBN SPRUANCE CLASS DD (963)
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
FURNISHED ITEMS AND QUANTITY2 BRAZING RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
214-5901-199293PCF5067Interchangeable
interchangeable cross-reference
interchangeable
320-3803-1438614PCF3Interchangeable
interchangeable cross-reference
interchangeable
CS4730-0121A01DLPQInterchangeable
interchangeable cross-reference
interchangeable
CS4730-0121A04GLPQInterchangeable
interchangeable cross-reference
interchangeable
MILF1183Interchangeable
interchangeable cross-reference
interchangeable
M1183/3-03GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-1183H?
MIL-F-1183H is a BRAZING ALLOY,SILVER.
What parts can replace MIL-F-1183H?
There are 28 known substitutes for MIL-F-1183H: 214-5901-199293PCF5067, 320-3803-1438614PCF3, CS4730-0121A01DLPQ and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-F-1183H?
MIL-F-1183H is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-542-5101. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026