PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1630B
1630B ✓ 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 depth: 0.625 INCHES NOMINAL IN, width: 1.625 INCHES NOMINAL IN, length: 6.719 INCHES NOMINAL IN, information_recorded: WIND SPEED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-218-5825, 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
1630B
NSN: 4730-00-218-5825
FSC: 4730
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
depth0.625 INCHES NOMINAL IN
width1.625 INCHES NOMINAL IN
length6.719 INCHES NOMINAL IN
information_recordedWIND SPEED
NSN4730-00-218-5825
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1630B · 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: 0.203 INCHES NOMINAL IN
•
HEIGHT: 0.734 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
ASSEMBLY CLEARANCE RADIUS: 0.469 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
ANGLE: 67.5 DEGREES
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SHANK LENGTH0.203 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
HEIGHT0.734 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
ASSEMBLY CLEARANCE RADIUS0.469 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
ANGLE67.5 DEGREES
MATERIALSTEEL OVERALL
STYLE DESIGNATORANGLE
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
53-31Interchangeable
interchangeable cross-reference
interchangeable
5-33-7PC3Interchangeable
interchangeable cross-reference
interchangeable
M19057Interchangeable
interchangeable cross-reference
interchangeable
400AInterchangeable
interchangeable cross-reference
interchangeable
919001Interchangeable
interchangeable cross-reference
interchangeable
STB38Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1630B?
1630B is a FITTING,LUBRICATION.
What parts can replace 1630B?
There are 19 known substitutes for 1630B: 53-31, 5-33-7PC3, M19057 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1630B?
1630B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-218-5825. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026