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1623B — FITTING,LUBRICATION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1623B: FITTING,LUBRICATION.

The FITTING,LUBRICATION is a the manufacturer industrial component. Key specifications include angle: 65.0 DEGREES, height: 0.812 INCHES MINIMUM AND 1.219 INCHES MAXIMUM IN, material: STEEL OVERALL, shank_length: 0.562 INCHES NOMINAL IN, special_features: SURFACE LOCATED BALL CHECK VALVE, style_designator: ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-010-9365, 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
1623B
NSN: 4730-00-010-9365
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
angle65.0 DEGREES
height0.812 INCHES MINIMUM AND 1.219 INCHES MAXIMUM IN
materialSTEEL OVERALL
shank_length0.562 INCHES NOMINAL IN
special_featuresSURFACE LOCATED BALL CHECK VALVE
style_designatorANGLE
surface_treatmentZINC OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
pressure_relief_methodPORT END
assembly_clearance_radius0.500 INCHES NOMINAL IN
screw_thread_series_designatorPTF-SPL SHORT
NSN4730-00-010-9365
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1623B · 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: 0.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ANGLE
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
PRESSURE RELIEF METHOD: PORT END
•
HEIGHT: 0.812 INCHES MINIMUM AND 1.219 INCHES MAXIMUM IN
•
ANGLE: 65.0 DEGREES
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
ASSEMBLY CLEARANCE RADIUS0.500 INCHES NOMINAL IN
SHANK LENGTH0.562 INCHES NOMINAL IN
STYLE DESIGNATORANGLE
NOMINAL THREAD SIZE0.125 INCHES IN
PRESSURE RELIEF METHODPORT END
HEIGHT0.812 INCHES MINIMUM AND 1.219 INCHES MAXIMUM IN
ANGLE65.0 DEGREES
SPECIAL FEATURESSURFACE LOCATED BALL CHECK VALVE
SCREW THREAD SERIES DESIGNATORPTF-SPL SHORT
SUBSTITUTES & CROSS-REFERENCES 4
273351Reference document
Same NSN cross-reference
Reference document — Secondary reference
722688Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
127743Reference document
Same NSN cross-reference
Reference document — Secondary reference
109365Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1623B?
1623B is a FITTING,LUBRICATION.
What parts can replace 1623B?
There are 4 known substitutes for 1623B: 273351, 722688, 127743 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1623B?
1623B is cataloged in the U.S. Government catalog under NSN 4730-00-010-9365. 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.