2B681-004 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

2B681-004: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL TUBE FIRST END, nominal_thread_size: 0.562 INCHES SECOND END IN, nominal_overall_length: 1.076 INCHES IN, thread_quantity_per_inch: 18 SECOND END, thread_series_designator: UNJS SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-172-3374, 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

2B681-004

NSN: 4730-01-172-3374
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)

SPECIFICATIONS

thread_class	3A SECOND END A
connection_type	THREADED EXTERNAL TUBE FIRST END
nominal_thread_size	0.562 INCHES SECOND END IN
nominal_overall_length	1.076 INCHES IN
thread_quantity_per_inch	18 SECOND END
thread_series_designator	UNJS SECOND END
nominal_outside_diameter_tube_accommodated	0.500 INCHES FIRST END IN
NSN	4730-01-172-3374

COMPONENT DIAGRAM

KEY FEATURES

•

NOMINAL OVERALL LENGTH: 1.076 INCHES IN

•

CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN

•

NOMINAL THREAD SIZE: 0.562 INCHES SECOND END IN

•

THREAD CLASS: 3A FIRST END A

•

THREAD QUANTITY PER INCH: 20 FIRST END

TECHNICAL CHARACTERISTICS

NOMINAL OVERALL LENGTH	1.076 INCHES IN
CONNECTION TYPE	THREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE	0.562 INCHES SECOND END IN
NOMINAL THREAD SIZE	0.718 INCHES FIRST END IN
THREAD CLASS	3A FIRST END A
THREAD CLASS	3A SECOND END A
THREAD QUANTITY PER INCH	20 FIRST END
THREAD QUANTITY PER INCH	18 SECOND END
THREAD SERIES DESIGNATOR	UNJS SECOND END

SUBSTITUTES & CROSS-REFERENCES 7

SAE-AS85720Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

AS1986Reference document

Same NSN cross-reference

Reference document — Secondary reference

395064Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

AS85720Reference document

Same NSN cross-reference

Reference document — Secondary reference

RF5008-13Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST7M200T8Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 2B681-004?

2B681-004 is a ADAPTER,STRAIGHT,TUBE TO BOSS.

What parts can replace 2B681-004?

There are 7 known substitutes for 2B681-004: SAE-AS85720, AS1986, 395064 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 2B681-004?

2B681-004 is cataloged in the U.S. Government catalog under NSN 4730-01-172-3374. This indicates validated use in U.S. government and defense supply chains.

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2B681-004 — ADAPTER,STRAIGHT,TUBE TO BOSS

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