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Technical Data Sheet
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B/1640 ✓ 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 B/1640 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-167-2931, 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/1640
NSN: 4730-01-167-2931
FSC: 4730
CAGE: U0095 — PARTS CENTER (GBR)
SPECIFICATIONS
Part NumberB/1640
NSN4730-01-167-2931
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B/1640 · 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
•
MEDIA FOR WHICH DESIGNED: ANY ACCEPTABLE
•
FILTERING MEDIA DESIGN: MESH SINGLE FILTERING MEDIA RESPONSE
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
•
MATERIAL: NICKEL ALLOY SCREENING
•
FIRST INTAKE NOMINAL OUTSIDE DIAMETER: 0.375 INCHES IN
•
MESH SIZE: 80.0
•
BODY LENGTH: 3.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDANY ACCEPTABLE
FILTERING MEDIA DESIGNMESH SINGLE FILTERING MEDIA RESPONSE
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
STYLE DESIGNATORY STRAINER W/THREADED COVER
MATERIALNICKEL ALLOY SCREENING
FIRST INTAKE NOMINAL OUTSIDE DIAMETER0.375 INCHES IN
MESH SIZE80.0
BODY LENGTH3.312 INCHES NOMINAL IN
TEMP RATING350.0 FAHRENHEIT NOMINAL DEGF
MOUNTING TYPEINLET CONNECTION AND OUTLET CONNECTION UPPER SIDE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
136226-1Interchangeable
interchangeable cross-reference
interchangeable
135135-209Interchangeable
interchangeable cross-reference
interchangeable
896Interchangeable
interchangeable cross-reference
interchangeable
B-1640Interchangeable
interchangeable cross-reference
interchangeable
N134610Interchangeable
interchangeable cross-reference
interchangeable
TI12-S01-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B/1640?
B/1640 is a B/1640.
What parts can replace B/1640?
There are 12 known substitutes for B/1640: 136226-1, 135135-209, 896 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B/1640?
B/1640 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-167-2931. 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