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PartsTable / COMPONENT / CS4730-0121-A-03-GLPQ
CS4730-0121-A-03-GLPQ ✓ 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 903 OR COPPER ALLOY 922 OVERALL, reducer_type: CONCENTRIC, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET BRAZING RING (PIPE) ALL ENDS, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 218.0 FAHRENHEIT SINGLE RESPONSE DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-012-1673, 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
CS4730-0121-A-03-GLPQ
NSN: 4730-01-012-1673
FSC: 4730
CAGE: 16236 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903 OR COPPER ALLOY 922 OVERALL
reducer_typeCONCENTRIC
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET BRAZING RING (PIPE) ALL ENDS
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp218.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.010 INCHES IN
nondefinitive_spec/std_dataA TYPE AND 1 FIGURE
specification/standard_data81349-MIL-F-1183J GOVERNMENT SPECIFICATION
furnished_items_and_quantity1 BRAZING RING
nominal_pipe_size_accommodated0.250 INCHES SECOND END IN
material_document_and_classificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-012-1673
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CS4730-0121-A-03-GLPQ · 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
•
NOMINAL OVERALL LENGTH: 1.010 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES SECOND END IN
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
REDUCER TYPE: CONCENTRIC
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: SOCKET BRAZING RING (PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.010 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
REDUCER TYPECONCENTRIC
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET BRAZING RING (PIPE) ALL ENDS
FURNISHED ITEMS AND QUANTITY1 BRAZING RING
SPECIFICATION/STANDARD DATA81349-MIL-F-1183J GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
5117061Interchangeable
interchangeable cross-reference
interchangeable
5175260Interchangeable
interchangeable cross-reference
interchangeable
LA997-9Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-1183Interchangeable
Same NIIN cross-reference
interchangeable
M1183/8-01AInterchangeable
Same NIIN cross-reference
interchangeable
MIL-DTL-1183/8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS4730-0121-A-03-GLPQ?
CS4730-0121-A-03-GLPQ is a BRAZING ALLOY,SILVER.
What parts can replace CS4730-0121-A-03-GLPQ?
There are 7 known substitutes for CS4730-0121-A-03-GLPQ: 5117061, 5175260, LA997-9 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS4730-0121-A-03-GLPQ?
CS4730-0121-A-03-GLPQ is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-012-1673. 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