PartsTable
Technical Data Sheet
Download PDF

MS21908D16 — ELBOW,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21908D16: ELBOW,TUBE TO BOSS.

The ELBOW,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 OVERALL, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS, nominal_thread_size: 1.3125 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-607-8889, 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
MS21908D16
NSN: 4730-01-607-8889
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OVERALL
seat_angle12.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
nominal_thread_size1.3125 INCHES ALL ENDS IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
NSN4730-01-607-8889
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21908D16 · 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: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL THREAD SIZE: 1.3125 INCHES ALL ENDS IN
•
SEAT ANGLE: 12.0 DEGREES ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
THREAD QUANTITY PER INCH: 12 ALL ENDS
•
MATERIAL: ALUMINUM ALLOY 2014 OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT (UNJ) ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL THREAD SIZE1.3125 INCHES ALL ENDS IN
SEAT ANGLE12.0 DEGREES ALL ENDS
THREAD CLASS3A ALL ENDS A
THREAD QUANTITY PER INCH12 ALL ENDS
MATERIALALUMINUM ALLOY 2014 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
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
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS21908D16Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS1008W1616Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy MS21908D16?
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 MS21908D16?
MS21908D16 is a ELBOW,TUBE TO BOSS.
What parts can replace MS21908D16?
There are 3 known substitutes for MS21908D16: SAE-AS18280, AS21908D16, AS1008W1616. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21908D16?
MS21908D16 is cataloged in the U.S. Government catalog under NSN 4730-01-607-8889. 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 — MS21908D16

✓ 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.