PartsTable
Technical Data Sheet
Download PDF

MS21915-16-10C — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21915-16-10C: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OR STEEL COMP 304 OVERALL, reducer_type: CONCENTRIC, thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-978-6973, 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
MS21915-16-10C
NSN: 4730-00-978-6973
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OR STEEL COMP 304 OVERALL
reducer_typeCONCENTRIC
thread_class3A SECOND END A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.875 INCHES SECOND END IN
nominal_overall_length1.984 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_quantity_per_inch12 FIRST END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
specification/standard_data96906-MS21915 GOVERNMENT STANDARD
NSN4730-00-978-6973
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21915-16-10C · 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: MIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.984 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66,AISI 316/SAE 30316 FED STD 1ST MATERIAL RESPONSE OR 66,AISI 304/SAE 30304 FED STD 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35,TY 1 FED SPEC 2ND TREATMENT RESPONSE INSIDE
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEGASKET SEAL (BOSS) FIRST END
NOMINAL OVERALL LENGTH1.984 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION66,AISI 316/SAE 30316 FED STD 1ST MATERIAL RESPONSE OR 66,AISI 304/SAE 30304 FED STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
NOMINAL THREAD SIZE0.875 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 2
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS21915-12-10CReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy MS21915-16-10C?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS21915-16-10C?
MS21915-16-10C is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace MS21915-16-10C?
There are 2 known substitutes for MS21915-16-10C: SAE-AS18280, MS21915-12-10C. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21915-16-10C?
MS21915-16-10C is cataloged in the U.S. Government catalog under NSN 4730-00-978-6973. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS21915-16-10C

✓ 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.