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PartsTable / COMPONENT / 21568-400-5
21568-400-5 ✓ 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 COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, connection_type: UNTHREADED EXTERNAL TUBE ALL ENDS, connection_style: GROOVED (TUBE) ALL ENDS, style_designator: GROOVED BOTH ENDS, nominal_overall_length: 1.003 INCHES IN, nondefinitive_spec/std_data: S COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-399-0952, 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
21568-400-5
NSN: 4730-01-399-0952
FSC: 4730
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
connection_typeUNTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGROOVED (TUBE) ALL ENDS
style_designatorGROOVED BOTH ENDS
nominal_overall_length1.003 INCHES IN
nondefinitive_spec/std_dataS COMPOSITION
specification/standard_data81349-MIL-C-24714 GOVERNMENT SPECIFICATION
material_document_and_classificationMIL-C-24714 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated1.987 INCHES ALL ENDS IN
NSN4730-01-399-0952
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21568-400-5 · 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
•
NONDEFINITIVE SPEC/STD DATA: S COMPOSITION
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.987 INCHES ALL ENDS IN
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-24714 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 1.003 INCHES IN
•
STYLE DESIGNATOR: GROOVED BOTH ENDS
•
CONNECTION STYLE: GROOVED (TUBE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAS COMPOSITION
CONNECTION TYPEUNTHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.987 INCHES ALL ENDS IN
MATERIALALUMINUM ALLOY 6061 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-24714 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OVERALL LENGTH1.003 INCHES IN
STYLE DESIGNATORGROOVED BOTH ENDS
CONNECTION STYLEGROOVED (TUBE) ALL ENDS
SPECIFICATION/STANDARD DATA81349-MIL-C-24714 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
M24714/1-013R-AInterchangeable
interchangeable cross-reference
interchangeable
21342Interchangeable
interchangeable cross-reference
interchangeable
02-0061-013Interchangeable
interchangeable cross-reference
interchangeable
21569-400-17Interchangeable
Same NIIN cross-reference
interchangeable
MIL-C-24714Interchangeable
Same NIIN cross-reference
interchangeable
3799109-5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21568-400-5?
21568-400-5 is a COUPLING,TUBE.
What parts can replace 21568-400-5?
There are 8 known substitutes for 21568-400-5: M24714/1-013R-A, 21342, 02-0061-013 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21568-400-5?
21568-400-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-399-0952. 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