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MS21915W16-8 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21915W16-8: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 7075 OVERALL, reducer_type: CONCENTRIC, thread_class: 3A SECOND END A, connection_type: THREADED INTERNAL BOSS FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-262-8218, 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
MS21915W16-8
NSN: 4730-00-262-8218
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 7075 OVERALL
reducer_typeCONCENTRIC
thread_class3A SECOND END A
connection_typeTHREADED INTERNAL BOSS FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
surface_treatmentANODIZE OVERALL
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.312 INCHES FIRST END IN
maximum_operating_temp274.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.937 INCHES IN
end_item_identificationAIRCRAFT APPLICATION
media_for_which_designedOXYGEN, GASEOUS THIRD RESPONSE
NSN4730-00-262-8218
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21915W16-8 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T6 OR T851 FED SPEC 1ST TREATMENT RESPONSE OR QQ-A-225/4,T6 FED SPEC 2ND TREATMENT RESPONSE OR QQ-A-225/9,T73 FED SPEC 3RD TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.937 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T6 OR T62 OR T851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/4,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T6 OR T851 FED SPEC 1ST TREATMENT RESPONSE OR QQ-A-225/4,T6 FED SPEC 2ND TREATMENT RESPONSE OR QQ-A-225/9,T73 FED SPEC 3RD TREATMENT RESPONSE OVERALL
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEGASKET SEAL (BOSS) FIRST END
NOMINAL OVERALL LENGTH1.937 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T6 OR T62 OR T851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/4,T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
AS18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS21915D16-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21915W16-8?
MS21915W16-8 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS21915W16-8?
There are 3 known substitutes for MS21915W16-8: AS18280, SAE-AS18280, MS21915D16-8. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21915W16-8?
MS21915W16-8 is cataloged in the U.S. Government catalog under NSN 4730-00-262-8218. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.