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Technical Data Sheet
PartsTable / COMPONENT / CS4730-0121A31GLPQ
CS4730-0121A31GLPQ ✓ 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 material: COPPER ALLOY 922 OVERALL, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET W/ GROVE (PIPE) ALL ENDS, style_designator: PLAIN, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS, maximum_operating_temp: 425.0 FAHRENHEIT FIRST RESPONSE DEGF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-542-5111, 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
CS4730-0121A31GLPQ
NSN: 4730-00-542-5111
FSC: 4730
CAGE: 16236 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 OVERALL
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET W/ GROVE (PIPE) ALL ENDS
style_designatorPLAIN
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
maximum_operating_temp425.0 FAHRENHEIT FIRST RESPONSE DEGF
nominal_overall_length3.690 INCHES IN
end_item_identification23N SHIP, OHIO CLASS SSN (TRIDENT)
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
nondefinitive_spec/std_data12 SIZE AND A TYPE
specification/standard_data81349-MIL-F-1183H GOVERNMENT SPECIFICATION
furnished_items_and_quantity2 BRAZING RING
NSN4730-00-542-5111
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CS4730-0121A31GLPQ · 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
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
NOMINAL PIPE SIZE ACCOMMODATED: 4.000 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
•
MAXIMUM OPERATING TEMP: 425.0 FAHRENHEIT FIRST RESPONSE DEGF
•
CONNECTION STYLE: SOCKET W/ GROVE (PIPE) ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION23N SHIP, OHIO CLASS SSN (TRIDENT)
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
NOMINAL PIPE SIZE ACCOMMODATED4.000 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT FIRST RESPONSE DEGF
CONNECTION STYLESOCKET W/ GROVE (PIPE) ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MATERIALCOPPER ALLOY 922 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
214-5901-199293PCF5067Interchangeable
interchangeable cross-reference
interchangeable
320-3803-1438614PCF3Interchangeable
interchangeable cross-reference
interchangeable
CS4730-0121A01DLPQInterchangeable
interchangeable cross-reference
interchangeable
4699265F3Interchangeable
interchangeable cross-reference
interchangeable
MILF1183CPL2-5IInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-1183Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS4730-0121A31GLPQ?
CS4730-0121A31GLPQ is a BRAZING ALLOY,SILVER.
What parts can replace CS4730-0121A31GLPQ?
There are 25 known substitutes for CS4730-0121A31GLPQ: 214-5901-199293PCF5067, 320-3803-1438614PCF3, CS4730-0121A01DLPQ and 22 more. Substitute compatibility should be verified for your specific system.
Is CS4730-0121A31GLPQ still available?
CS4730-0121A31GLPQ 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