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Technical Data Sheet
PartsTable / COMPONENT / 21140-25
21140-25 ✓ 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 RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, design_type: TUBULAR, thread_provision: THREADED LOCATION NOT OTHERWISE SPECIFIED, end_item_identification: SEAWOLF CLASS SSN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-419-7087, 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
21140-25
NSN: 4730-01-419-7087
FSC: 4730
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
end_item_identificationSEAWOLF CLASS SSN
NSN4730-01-419-7087
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21140-25 · 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
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
21309Interchangeable
interchangeable cross-reference
interchangeable
207849Interchangeable
interchangeable cross-reference
interchangeable
21-140Interchangeable
interchangeable cross-reference
interchangeable
600-GP-21Interchangeable
interchangeable cross-reference
interchangeable
600C21NHInterchangeable
interchangeable cross-reference
interchangeable
PM-21140Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21140-25?
21140-25 is a RESTRICTOR,FLUID FLOW.
What parts can replace 21140-25?
There are 23 known substitutes for 21140-25: 21309, 207849, 21-140 and 20 more. Substitute compatibility should be verified for your specific system.
Is 21140-25 still available?
21140-25 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