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2D11 — GEAR,HELICAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2D11: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, helix_angle: 30.0000 DEGREES, pitch_diameter: 0.5412 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 15, material_document_and_classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-317-4345, 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
2D11
NSN: 4730-00-317-4345
NIINs: 003174345, 011574390
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14127 — FOSTER MANUFACTURING CO, INC. DBA FOSTER MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
helix_angle30.0000 DEGREES
pitch_diameter0.5412 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity15
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-317-4345
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2D11 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HOSE COUPLING NUT
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) SECOND END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.500 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 1.875 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.875 INCHES IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT FIRST END
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 2D11?
2D11 is a GEAR,HELICAL.
What is the NSN for 2D11?
2D11 is cataloged in the U.S. Government catalog under NSN 4730-00-317-4345. 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.