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PartsTable / COMPONENT / 11B4521002
11B4521002 ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, special_features: 1/4 INCH NPT MALE X 3/8 INCH TUBE IN, nominal_thread_size: 0.250 INCHES SECOND END IN, nominal_overall_length: 1.70 INCHES IN, end_item_identification: 4210-01-627-0524, thread_series_designator: NPT SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-629-5601, 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
11B4521002
NSN: 4730-01-629-5601
FSC: 4730
CAGE: 5B5M3 — DEVCOM CHEMICAL BIOLOGICAL CENTER DBA CHEMICAL BIOLOGICAL CENTER DIV U.S. DEPT OF ARMY (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
special_features1/4 INCH NPT MALE X 3/8 INCH TUBE IN
nominal_thread_size0.250 INCHES SECOND END IN
nominal_overall_length1.70 INCHES IN
end_item_identification4210-01-627-0524
thread_series_designatorNPT SECOND END
part_name_assigned_by_controlling_agencyCONNECTOR, MALE
NSN4730-01-629-5601
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 11B4521002 · 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
•
NOMINAL OVERALL LENGTH: 1.70 INCHES IN
•
MATERIAL: PLASTIC OVERALL
•
THREAD SERIES DESIGNATOR: NPT SECOND END
•
NOMINAL THREAD SIZE: 0.250 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION4210-01-627-0524
SPECIAL FEATURES1/4 INCH NPT MALE X 3/8 INCH TUBE IN
NOMINAL OVERALL LENGTH1.70 INCHES IN
MATERIALPLASTIC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYCONNECTOR, MALE
THREAD SERIES DESIGNATORNPT SECOND END
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
7740534Interchangeable
interchangeable cross-reference
interchangeable
51240Interchangeable
interchangeable cross-reference
interchangeable
10049529Interchangeable
interchangeable cross-reference
interchangeable
232Interchangeable
interchangeable cross-reference
interchangeable
5124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11B4521002?
11B4521002 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 11B4521002?
There are 5 known substitutes for 11B4521002: 7740534, 51240, 10049529 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11B4521002?
11B4521002 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-629-5601. 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