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MS21926W4 — ELBOW,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21926W4: ELBOW,TUBE.

The ELBOW,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.970 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL TUBE FIRST END BULKHEAD. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-494-8711, 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
MS21926W4
NSN: 4730-01-494-8711
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
flow_angle90.0 DEGREES
leg_length0.970 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES ALL ENDS
thread_class3A SECOND END A
connection_typeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
connection_styleFLARELESS (TUBE) ALL ENDS
nominal_thread_size0.437 INCHES SECOND END IN
end_item_identificationNSN1520-01-125-5476 - HELICOPTER, OBSERVATION (AHIP) OH-58D
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) SECOND END
specification/standard_data96906-MS21926 GOVERNMENT STANDARD AND 81343-SAEAS21926 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
part_name_assigned_by_controlling_agencyELBOW, 90 DEGREE UNIVERSAL, FLARELESS TUBE, LOW PROFILE
NSN4730-01-494-8711
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21926W4 · 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
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END BULKHEAD
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
LEG LENGTH: 0.970 INCHES NOMINAL SECOND END IN
•
NOMINAL THREAD SIZE: 0.437 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END BULKHEAD
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
LEG LENGTH0.970 INCHES NOMINAL SECOND END IN
LEG LENGTH1.070 INCHES NOMINAL FIRST END BULKHEAD IN
NOMINAL THREAD SIZE0.437 INCHES SECOND END IN
NOMINAL THREAD SIZE0.437 INCHES FIRST END BULKHEAD IN
SEAT ANGLE12.0 DEGREES ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 3
AS21926Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS21926CReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21926W4?
MS21926W4 is a ELBOW,TUBE.
What parts can replace MS21926W4?
There are 3 known substitutes for MS21926W4: AS21926, SAE-AS18280, MS21926C. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21926W4?
MS21926W4 is cataloged in the U.S. Government catalog under NSN 4730-01-494-8711. This indicates validated use in U.S. government and defense supply chains.
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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.