309681 — COOLER,LUBRICATING OIL,ENGINE

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

309681: COOLER,LUBRICATING OIL,ENGINE.

The COOLER,LUBRICATING OIL,ENGINE is a the manufacturer industrial component. Key specifications include length: 0.549 INCHES NOMINAL IN, material: COPPER ALLOY, design_type: TUBULAR, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, thread_length: 0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, thread_series: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-003-7866, 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

309681

NSN: 4730-00-003-7866
NIINs: 000037866, 012860143, 013759703
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80256 — OUTBOARD MARINE CORP (USA)

SPECIFICATIONS

length	0.549 INCHES NOMINAL IN
material	COPPER ALLOY
design_type	TUBULAR
thread_class	2A LOCATION NOT OTHERWISE SPECIFIED A
thread_length	0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
thread_series	UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
orifice_diameter	0.040 INCHES NOMINAL IN
outside_diameter	0.180 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
special_features	W/UNTHD END,0.180 IN.OD,0.188 IN. LG,AND SLOTTED,0.050 IN. W,0.094 IN. DEEP IN
thread_provision	THREADED LOCATION NOT OTHERWISE SPECIFIED
thread_size_designator	1/4-20 LOCATION NOT OTHERWISE SPECIFIED
NSN	4730-00-003-7866

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 0.549 INCHES NOMINAL IN

•

THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED

•

DESIGN TYPE: TUBULAR

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED

•

THREAD LENGTH: 0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN

•

OUTSIDE DIAMETER: 0.180 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN

•

THREAD SIZE DESIGNATOR: 1/4-20 LOCATION NOT OTHERWISE SPECIFIED

TECHNICAL CHARACTERISTICS

LENGTH	0.549 INCHES NOMINAL IN
THREAD PROVISION	THREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPE	TUBULAR
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH	0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE DIAMETER	0.180 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THREAD SIZE DESIGNATOR	1/4-20 LOCATION NOT OTHERWISE SPECIFIED
SPECIAL FEATURES	W/UNTHD END,0.180 IN.OD,0.188 IN. LG,AND SLOTTED,0.050 IN. W,0.094 IN. DEEP IN
THREAD CLASS	2A LOCATION NOT OTHERWISE SPECIFIED A
MATERIAL	COPPER ALLOY

SUBSTITUTES & CROSS-REFERENCES 3

0324040Reference document

Same NSN cross-reference

Reference document — Secondary reference

324020Reference document

Same NSN cross-reference

Reference document — Secondary reference

324040Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 309681?

309681 is a COOLER,LUBRICATING OIL,ENGINE.

What parts can replace 309681?

There are 3 known substitutes for 309681: 0324040, 324020, 324040. Substitute compatibility should be verified for your specific system.

What is the NSN for 309681?

309681 is cataloged in the U.S. Government catalog under NSN 4730-00-003-7866. This indicates validated use in U.S. government and defense supply chains.

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309681 — COOLER,LUBRICATING OIL,ENGINE

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