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Technical Data Sheet
PartsTable / COMPONENT / MS27023-21
MS27023-21 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 2.875 INCHES NOMINAL IN, overall_length: 3.125 INCHES NOMINAL IN, connection_type: UNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: GROOVED ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-416-1533, 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
MS27023-21
NSN: 4730-01-416-1533
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length2.875 INCHES NOMINAL IN
overall_length3.125 INCHES NOMINAL IN
connection_typeUNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleGROOVED ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE BODY
end_item_identification5430013745656
quick_disconnect_methodCAM-LOCKING FIRST QUICK DISCONNECT END
material_document_and_classificationQQ-A-601 MIL STD SINGLE MATERIAL RESPONSE BODY
nominal_outside_diameter_tube_accommodated2.000 INCHES ALL ENDS IN
NSN4730-01-416-1533
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS27023-21 · 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 DOCUMENT AND CLASSIFICATION: QQ-A-601 MIL STD SINGLE MATERIAL RESPONSE BODY
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
•
LEG LENGTH: 2.875 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE BODY
•
QUICK DISCONNECT METHOD: CAM-LOCKING FIRST QUICK DISCONNECT END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 2.000 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-601 MIL STD SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION TYPEUNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
LEG LENGTH2.875 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE BODY
QUICK DISCONNECT METHODCAM-LOCKING FIRST QUICK DISCONNECT END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED2.000 INCHES ALL ENDS IN
END ITEM IDENTIFICATION5430013745656
MATERIALALUMINUM ALLOY BODY
CONNECTION STYLEGROOVED ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
633LAT6INALInterchangeable
interchangeable cross-reference
interchangeable
AA59326/4-5-AInterchangeable
interchangeable cross-reference
interchangeable
MS27023-19Interchangeable
interchangeable cross-reference
interchangeable
AA59326-G-4Interchangeable
interchangeable cross-reference
interchangeable
A-A-59326-4Interchangeable
interchangeable cross-reference
interchangeable
MS27030-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27023-21?
MS27023-21 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace MS27023-21?
There are 21 known substitutes for MS27023-21: 633LAT6INAL, AA59326/4-5-A, MS27023-19 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS27023-21?
MS27023-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-416-1533. 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