PartsTable
Technical Data Sheet
Download PDF

MS21911-8J — TEE,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21911-8J: TEE,TUBE TO BOSS.

The TEE,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, leg_length: 1.000 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3B SECOND END, connection_type: THREADED EXTERNAL BOSS THIRD END, connection_style: FLARELESS (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-142-7887, 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
MS21911-8J
NSN: 4730-01-142-7887
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
leg_length1.000 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES FIRST END
thread_class3B SECOND END
connection_typeTHREADED EXTERNAL BOSS THIRD END
connection_styleFLARELESS (TUBE) FIRST END
nominal_thread_size0.750 INCHES FIRST END BULKHEAD IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
specification/standard_data96906-MS21911 GOVERNMENT STANDARD
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-01-142-7887
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21911-8J · 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END
•
CONNECTION TYPE: THREADED EXTERNAL BOSS THIRD END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
LEG LENGTH: 1.344 INCHES NOMINAL THIRD END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL BOSS THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
LEG LENGTH1.344 INCHES NOMINAL THIRD END IN
LEG LENGTH2.031 INCHES NOMINAL FIRST END IN
LEG LENGTH1.000 INCHES NOMINAL SECOND 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 2
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS21911-8CReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
Ready to buy MS21911-8J?
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 MS21911-8J?
MS21911-8J is a TEE,TUBE TO BOSS.
What parts can replace MS21911-8J?
There are 2 known substitutes for MS21911-8J: SAE-AS18280, MS21911-8C. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21911-8J?
MS21911-8J is cataloged in the U.S. Government catalog under NSN 4730-01-142-7887. 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 — MS21911-8J