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21421-400 — MANIFOLD ASSEMBLY,HYDRAULIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

21421-400: MANIFOLD ASSEMBLY,HYDRAULIC.

The MANIFOLD ASSEMBLY,HYDRAULIC is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, connection_type: FLANGE, RECTANGULAR W/HOLES, special_features: NHA MANIFOLD ASSY; MADE OF VARIOUS MATL, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 60.0 FAHRENHEIT SINGLE RESPONSE DEGF, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-450-8682, 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
MRO→ MRO_GENERAL→ 21421-400
NSN: 4730-01-450-8682
NIINs: 014508682, 014518127, 014732395
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
connection_typeFLANGE, RECTANGULAR W/HOLES
special_featuresNHA MANIFOLD ASSY; MADE OF VARIOUS MATL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp60.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
end_connection_quantity5
end_item_identificationSEAWOLF CLASS SSN
opening_pressure_setting2.0 POUNDS PER SQUARE INCH LBS
NSN4730-01-450-8682
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21421-400 · 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
•
CONNECTION TYPE: FLANGE, RECTANGULAR W/HOLES
•
END CONNECTION QUANTITY: 5
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
CONNECTION TYPEFLANGE, RECTANGULAR W/HOLES
END CONNECTION QUANTITY5
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALALUMINUM ALLOY 6061
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21421-400?
21421-400 is a MANIFOLD ASSEMBLY,HYDRAULIC. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 21421-400?
21421-400 is cataloged in the U.S. Government catalog under NSN 4730-01-450-8682. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.