PartsTable
Technical Data Sheet
Download PDF

MS21925-4D — ELBOW,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21925-4D: ELBOW,TUBE.

The ELBOW,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.940 INCHES MINIMUM AND 0.940 INCHES MINIMUM AND 0.987 INCHES MAXIMUM SECOND END0.987 INCHES MAXIMUM SECOND END IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-293-1218, 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
MS21925-4D
NSN: 4730-00-293-1218
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OVERALL
flow_angle90.0 DEGREES
leg_length0.940 INCHES MINIMUM AND 0.940 INCHES MINIMUM AND 0.987 INCHES MAXIMUM SECOND END0.987 INCHES MAXIMUM SECOND END IN
seat_angle12.0 DEGREES ALL ENDS
thread_class3A ALL ENDS3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDSFLARELESS (TUBE) ALL ENDS
surface_treatmentANODIZE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES FIRST END BULKHEAD0.438 INCHES FIRST END BULKHEAD IN
maximum_operating_temp1350.0 CELSIUS SINGLE RESPONSE1350.0 CELSIUS SINGLE RESPONSE DEGC
media_for_which_designedFLUID SINGLE RESPONSE
NSN4730-00-293-1218
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21925-4D · 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
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDSFLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END BULKHEADTHREADED EXTERNAL TUBE FIRST END BULKHEAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END BULKHEAD IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARELESS (TUBE) ALL ENDSFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END BULKHEADTHREADED EXTERNAL TUBE FIRST END BULKHEAD
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDSTHREADED EXTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END BULKHEAD IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END BULKHEAD0.250 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH0.940 INCHES MINIMUM AND 0.940 INCHES MINIMUM AND 0.987 INCHES MAXIMUM SECOND END0.987 INCHES MAXIMUM 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 1
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy MS21925-4D?
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 MS21925-4D?
MS21925-4D is a ELBOW,TUBE.
What parts can replace MS21925-4D?
There is 1 known substitute for MS21925-4D: SAE-AS18280. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21925-4D?
MS21925-4D is cataloged in the U.S. Government catalog under NSN 4730-00-293-1218. 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 — MS21925-4D

✓ 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.