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Technical Data Sheet
PartsTable / COMPONENT / B-633M
B-633M ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The FITTING,LUBRICATION is a the manufacturer industrial component. Key specifications include height: 0.625 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.250 INCHES NOMINAL IN, shank_diameter: 0.312 INCHES NOMINAL IN, special_features: SERRATED DRIVE SHANK,NO BALL CHECK, style_designator: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-726-8025, 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
B-633M
NSN: 4730-00-726-8025
FSC: 4730
CAGE: 05463 — WHEELABRATOR-FRYE INC BALCRANK PRODUCTS (USA)
SPECIFICATIONS
height0.625 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.250 INCHES NOMINAL IN
shank_diameter0.312 INCHES NOMINAL IN
special_featuresSERRATED DRIVE SHANK,NO BALL CHECK
style_designatorSTRAIGHT
surface_treatmentCADMIUM OVERALL
NSN4730-00-726-8025
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B-633M · 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
•
SHANK LENGTH: 0.250 INCHES NOMINAL IN
•
HEIGHT: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
SHANK DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SHANK LENGTH0.250 INCHES NOMINAL IN
HEIGHT0.625 INCHES NOMINAL IN
SPECIAL FEATURESSERRATED DRIVE SHANK,NO BALL CHECK
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT
SHANK DIAMETER0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
CA3011Interchangeable
interchangeable cross-reference
interchangeable
25712Interchangeable
interchangeable cross-reference
interchangeable
025712Interchangeable
interchangeable cross-reference
interchangeable
1633-1Interchangeable
interchangeable cross-reference
interchangeable
1633Interchangeable
interchangeable cross-reference
interchangeable
1377-M565Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-633M?
B-633M is a FITTING,LUBRICATION.
What parts can replace B-633M?
There are 16 known substitutes for B-633M: CA3011, 25712, 025712 and 13 more. Substitute compatibility should be verified for your specific system.
Is B-633M still available?
B-633M is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026