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AS15721 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS15721: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include height: 0.750 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, shank_length: 0.281 INCHES NOMINAL IN, special_features: SURFACE OR THROAT LOCATED BALL CHECK VALVE, style_designator: STRAIGHT, width_across_flats: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-195-0013, 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
AS15721
NSN: 4730-00-195-0013
NIINs: 001950013, 002013243, 002457703, 009725789
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
height0.750 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
shank_length0.281 INCHES NOMINAL IN
special_featuresSURFACE OR THROAT LOCATED BALL CHECK VALVE
style_designatorSTRAIGHT
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
end_item_identificationLOGISTICS SUPPORT VESSEL (LSV)
thread_quantity_per_inch27
screw_thread_series_designatorPTF-SPL SHORT
material_document_and_classificationMS15721 MIL STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-195-0013
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS15721 · 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
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
ASSEMBLY CLEARANCE RADIUS: 0.500 INCHES NOMINAL IN
•
SHANK LENGTH: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
HEIGHT: 0.906 INCHES NOMINAL IN
•
ANGLE: 67.5 DEGREES
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
ASSEMBLY CLEARANCE RADIUS0.500 INCHES NOMINAL IN
SHANK LENGTH0.312 INCHES NOMINAL IN
STYLE DESIGNATORANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.125 INCHES IN
HEIGHT0.906 INCHES NOMINAL IN
ANGLE67.5 DEGREES
SPECIAL FEATURESSURFACE OR THROAT LOCATED BALL CHECK VALVE
SCREW THREAD SERIES DESIGNATORPTF-SPL SHORT
SUBSTITUTES & CROSS-REFERENCES 5
1922SReference document
Same NSN cross-reference
Reference document — Secondary reference
AS15721-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS35411Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS35411Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS15721-4Reference 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 AS15721?
AS15721 is a BEARING,BALL,ANNULAR.
What parts can replace AS15721?
There are 5 known substitutes for AS15721: 1922S, AS15721-4, AS35411 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS15721?
AS15721 is cataloged in the U.S. Government catalog under NSN 4730-00-195-0013. 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.