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SAE AS21924 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SAE AS21924: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A CENTER BULKHEAD A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: FLARELESS (TUBE) FIRST END, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-541-1750, 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
SAE AS21924
NSN: 4730-00-541-1750
NIINs: 005411750, 014360108
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class3A CENTER BULKHEAD A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleFLARELESS (TUBE) FIRST END
surface_treatmentANODIZE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.312 INCHES ALL ENDS IN
maximum_operating_temp135.0 CELSIUS SINGLE RESPONSE DEGC
nominal_overall_length2.469 INCHES IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) CENTER BULKHEAD
NSN4730-00-541-1750
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SAE AS21924 · 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: QQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.656 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.656 INCHES IN
CRITICALITY CODE JUSTIFICATIONFEAT
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.438 INCHES CENTER BULKHEAD IN
SUBSTITUTES & CROSS-REFERENCES 8
DLG315F0404Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
VSF1280F0404Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
GA7444F0404Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS21924-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS21925-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS21903-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SAE AS21924?
SAE AS21924 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace SAE AS21924?
There are 8 known substitutes for SAE AS21924: DLG315F0404, VSF1280F0404, GA7444F0404 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SAE AS21924?
SAE AS21924 is cataloged in the U.S. Government catalog under NSN 4730-00-541-1750. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.