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Technical Data Sheet
PartsTable / COMPONENT / M1183/5-34A
M1183/5-34A ✓ 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 M1183/5-34A is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0134, 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
M1183/5-34A
NSN: 4730-00-278-0134
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM1183/5-34A
NSN4730-00-278-0134
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M1183/5-34A · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: STEAM SINGLE RESPONSE
•
LEG LENGTH: 3.460 INCHES NOMINAL ALL ENDS IN
•
MAXIMUM OPERATING TEMP: 260.0 CELSIUS SINGLE RESPONSE DEGC
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-1183J GOVERNMENT SPECIFICATION
•
NOMINAL PIPE SIZE ACCOMMODATED: 6.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
LEG LENGTH3.460 INCHES NOMINAL ALL ENDS IN
MAXIMUM OPERATING TEMP260.0 CELSIUS SINGLE RESPONSE DEGC
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA81349-MIL-F-1183J GOVERNMENT SPECIFICATION
NOMINAL PIPE SIZE ACCOMMODATED6.000 INCHES ALL ENDS IN
CONNECTION STYLESTREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS
NONDEFINITIVE SPEC/STD DATA1 FIGURE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
D8197CJInterchangeable
interchangeable cross-reference
interchangeable
938D679-12Interchangeable
interchangeable cross-reference
interchangeable
36076Interchangeable
interchangeable cross-reference
interchangeable
AN150354Interchangeable
interchangeable cross-reference
interchangeable
3278Interchangeable
interchangeable cross-reference
interchangeable
W37782Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1183/5-34A?
M1183/5-34A is a M1183/5-34A.
What parts can replace M1183/5-34A?
There are 10 known substitutes for M1183/5-34A: D8197CJ, 938D679-12, 36076 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M1183/5-34A?
M1183/5-34A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0134. 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