PartsTable
Technical Data Sheet
CS44 ✓ 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

CYLINDER ASSEMBLY,BREATHING AIR. Key specifications include height: 16.500 INCHES NOMINAL IN, material: STEEL NUT, seat_type: GASKET, thermometer: NOT INCLUDED, reducer_type: CONCENTRIC, extension_tube: NOT INCLUDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-128-0468, 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
CS44
NSN: 4730-00-128-0468
FSC: 4730
CAGE: 88772 — HARSCO CORP DBA CAPITOL MFG (USA)
SPECIFICATIONS
height16.500 INCHES NOMINAL IN
materialSTEEL NUT
seat_typeGASKET
thermometerNOT INCLUDED
reducer_typeCONCENTRIC
extension_tubeNOT INCLUDED
overall_length15.000 INCHES NOMINAL IN
connection_stylePLAIN (PIPE) SECOND END
special_featuresDOT SYSTEM W/MIN PSI OF 4500,W/FITTINGS,VALVES,PIGTAILS,FILL HOSE,LINE GAUGE,IN-LINE REGULATOR,CONNECTOR HOSE,WALL MOUNTING BRACKET; 4CY AT 45O CU FTEA W
nominal_thread_size1.000 INCHES SECOND END IN
fsc_application_dataFOR GENERAL PURPOSE USE
coupling_flange_shapeROUND
NSN4730-00-128-0468
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CS44 · 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
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.062 INCHES FIRST END IN
MATERIAL: STEEL NUT
SEAT TYPE: GASKET
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.125 INCHES FIRST END IN
COUPLING FLANGE SHAPE: ROUND
REDUCER TYPE: CONCENTRIC
CONNECTION STYLE: PLAIN (PIPE) SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.062 INCHES FIRST END IN
MATERIALSTEEL NUT
MATERIALSTEEL THREAD PIECE
SEAT TYPEGASKET
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.125 INCHES FIRST END IN
COUPLING FLANGE SHAPEROUND
REDUCER TYPECONCENTRIC
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE1.000 INCHES SECOND END IN
CONNECTION STYLESOCKET (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
CS4-4Interchangeable
interchangeable cross-reference
interchangeable
CS-4.4Interchangeable
interchangeable cross-reference
interchangeable
TTU-131/EInterchangeable
interchangeable cross-reference
interchangeable
TM 6004Interchangeable
interchangeable cross-reference
interchangeable
NO 5 SYSTEMInterchangeable
interchangeable cross-reference
interchangeable
70-6604Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS44?
CS44 is a CYLINDER ASSEMBLY,BREATHING AIR.
What parts can replace CS44?
There are 6 known substitutes for CS44: CS4-4, CS-4.4, TTU-131/E and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS44?
CS44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-128-0468. This indicates validated use in U.S. government and defense supply chains.
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