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21342-44 ✓ 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, special_features: VALVE ASSEMBLY,TORPEDO INTERLOCK,SPECIAL SIZE, end_item_identification: SUBMARINE; SEAWOLF CLASS SSN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-415-6955, 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
21342-44
NSN: 4730-01-415-6955
FSC: 4730
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
special_featuresVALVE ASSEMBLY,TORPEDO INTERLOCK,SPECIAL SIZE
end_item_identificationSUBMARINE; SEAWOLF CLASS SSN
NSN4730-01-415-6955
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21342-44 · 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
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
SPECIAL FEATURESVALVE ASSEMBLY,TORPEDO INTERLOCK,SPECIAL SIZE
END ITEM IDENTIFICATIONSUBMARINE; SEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
B94.2-1971 TABLE 5Interchangeable
interchangeable cross-reference
interchangeable
20710Interchangeable
interchangeable cross-reference
interchangeable
506.3125Interchangeable
interchangeable cross-reference
interchangeable
21342Interchangeable
interchangeable cross-reference
interchangeable
72MBS1Interchangeable
interchangeable cross-reference
interchangeable
21056AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21342-44?
21342-44 is a RESTRICTOR,FLUID FLOW.
What parts can replace 21342-44?
There are 18 known substitutes for 21342-44: B94.2-1971 TABLE 5, 20710, 506.3125 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21342-44?
21342-44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-415-6955. 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