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PartsTable / COMPONENT / 9D0021-256
9D0021-256 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, overall_width: 0.500 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN, inside_diameter: 7.062 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN, special_features: W/INNER BAND SHOE, style_designator: WIRE, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-196-7185, 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
9D0021-256
NSN: 4730-01-196-7185
FSC: 4730
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
overall_width0.500 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
inside_diameter7.062 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
special_featuresW/INNER BAND SHOE
style_designatorWIRE
surface_treatmentPASSIVATE OVERALL
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
material_document_and_classificationMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-196-7185
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 9D0021-256 · 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
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE SCREW
•
STYLE DESIGNATOR: WIRE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
INSIDE DIAMETER: 7.062 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE SCREW
STYLE DESIGNATORWIRE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
INSIDE DIAMETER7.062 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
OVERALL WIDTH0.500 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
MATERIALSTEEL COMP 302 OVERALL
SPECIAL FEATURESW/INNER BAND SHOE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
94120-1Interchangeable
interchangeable cross-reference
interchangeable
94120Interchangeable
interchangeable cross-reference
interchangeable
94-386Interchangeable
interchangeable cross-reference
interchangeable
94-387Interchangeable
interchangeable cross-reference
interchangeable
2948-256Interchangeable
Same NIIN cross-reference
interchangeable
WWD256HInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9D0021-256?
9D0021-256 is a CLAMP,HOSE.
What parts can replace 9D0021-256?
There are 7 known substitutes for 9D0021-256: 94120-1, 94120, 94-386 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9D0021-256?
9D0021-256 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-196-7185. 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