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4730L20-003 — ADAPTER BUSHING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4730L20-003: ADAPTER BUSHING.

The ADAPTER BUSHING is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.186 INCHES NOMINAL IN, overall_length: 0.719 INCHES NOMINAL IN, surface_treatment: CADMIUM, male_end_thread_size: 1.250 IN.-12 IN, female_end_thread_size: 1 IN.-18 IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-517-5330, 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
4730L20-003
NSN: 4730-00-517-5330
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL
thickness0.186 INCHES NOMINAL IN
overall_length0.719 INCHES NOMINAL IN
surface_treatmentCADMIUM
male_end_thread_size1.250 IN.-12 IN
female_end_thread_size1 IN.-18 IN
male_end_thread_length0.531 INCHES NOMINAL IN
female_end_thread_length0.625 INCHES NOMINAL IN
wrenching_facility_shapeROUND
male_end_thread_directionRIGHT-HAND
female_end_thread_directionRIGHT-HAND
specification/standard_data77445-20117+3 GOVERNMENT STANDARD
NSN4730-00-517-5330
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4730L20-003 · 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
•
MALE END THREAD PITCH DIAMETERS: +1.2029 TO 1.2049 INCHES IN
•
MALE END THREAD SIZE: 1.250 IN.-12 IN
•
WRENCHING FACILITY DIAMETER: 1.500 INCHES NOMINAL IN
•
FEMALE END THREAD LENGTH: 0.625 INCHES NOMINAL IN
•
MALE END THREAD DIRECTION: RIGHT-HAND
•
FEMALE END THREAD PITCH DIAMETERS: +0.9639 TO 0.9675 INCHES IN
•
FEMALE END THREAD SIZE: 1 IN.-18 IN
TECHNICAL CHARACTERISTICS
MALE END THREAD PITCH DIAMETERS+1.2029 TO 1.2049 INCHES IN
MALE END THREAD SIZE1.250 IN.-12 IN
WRENCHING FACILITY DIAMETER1.500 INCHES NOMINAL IN
FEMALE END THREAD LENGTH0.625 INCHES NOMINAL IN
OVERALL LENGTH0.719 INCHES NOMINAL IN
MALE END THREAD DIRECTIONRIGHT-HAND
FEMALE END THREAD PITCH DIAMETERS+0.9639 TO 0.9675 INCHES IN
FEMALE END THREAD SIZE1 IN.-18 IN
SPECIFICATION/STANDARD DATA77445-20117+3 GOVERNMENT STANDARD
WRENCHING FACILITY SHAPEROUND
SUBSTITUTES & CROSS-REFERENCES 2
20117-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
20117P003Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4730L20-003?
4730L20-003 is a ADAPTER BUSHING.
What parts can replace 4730L20-003?
There are 2 known substitutes for 4730L20-003: 20117-3, 20117P003. Substitute compatibility should be verified for your specific system.
What is the NSN for 4730L20-003?
4730L20-003 is cataloged in the U.S. Government catalog under NSN 4730-00-517-5330. 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.