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GD-4D — CLAMP,HOSE,SPECIAL-SHAPED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GD-4D: CLAMP,HOSE,SPECIAL-SHAPED.

The CLAMP,HOSE,SPECIAL-SHAPED is a the manufacturer industrial component. Key specifications include end_item_identification: 3990-01-443-8024. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-538-4223, 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
GD-4D
NSN: 4730-01-538-4223
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53790 — STAUFF CORP (USA)
SPECIFICATIONS
special_featuresITEM IS RECTANGULAR 3.90"L X 1.1250"W X 0.13"H WITH A RAISED SECTION IN THE MIDDLE TO 0.31H WITH A DIA 0.344" RECESS ON TOP.
end_item_identification3990-01-443-8024
NSN4730-01-538-4223
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GD-4D · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESITEM IS RECTANGULAR 3.90"L X 1.1250"W X 0.13"H WITH A RAISED SECTION IN THE MIDDLE TO 0.31H WITH A DIA 0.344" RECESS ON TOP.
END ITEM IDENTIFICATION3990-01-443-8024
SUBSTITUTES & CROSS-REFERENCES 3
4HB816Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
403785Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ND9704Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GD-4D?
GD-4D is a CLAMP,HOSE,SPECIAL-SHAPED.
What parts can replace GD-4D?
There are 3 known substitutes for GD-4D: 4HB816, 403785, ND9704. Substitute compatibility should be verified for your specific system.
What is the NSN for GD-4D?
GD-4D is cataloged in the U.S. Government catalog under NSN 4730-01-538-4223. 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.