123721-2 — COUPLING,BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

123721-2: COUPLING,BOSS.

The COUPLING,BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL (BOSS) ALL ENDS, special_features: RD MTG FLANGE 2.313 IN. DIA,WITH 4 BOLT HOLES 0.220 MIN,0.226 IN.

MAX DIA OF BOLT HOLES,WELDED 0.313 IN. FROM END IN, style_designator: PLAIN W/TAPERED ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-439-6034, 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

123721-2

NSN: 4730-00-439-6034
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)

SPECIFICATIONS

material	STEEL OVERALL
thread_class	3B ALL ENDS
connection_type	THREADED INTERNAL BOSS ALL ENDS
connection_style	GASKET SEAL (BOSS) ALL ENDS
special_features	RD MTG FLANGE 2.313 IN. DIA,WITH 4 BOLT HOLES 0.220 MIN,0.226 IN. MAX DIA OF BOLT HOLES,WELDED 0.313 IN. FROM END IN
style_designator	PLAIN W/TAPERED ENDS
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.750 INCHES ALL ENDS IN
nominal_overall_length	1.750 INCHES IN
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classification	QQ-S-763,CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763,CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	4730-00-439-6034

COMPONENT DIAGRAM

KEY FEATURES

•

CONNECTION STYLE: GASKET SEAL (BOSS) ALL ENDS

•

NOMINAL OVERALL LENGTH: 1.750 INCHES IN

•

CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS

•

STYLE DESIGNATOR: PLAIN W/TAPERED ENDS

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763,CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

TECHNICAL CHARACTERISTICS

CONNECTION STYLE	GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH	1.750 INCHES IN
CONNECTION TYPE	THREADED INTERNAL BOSS ALL ENDS
STYLE DESIGNATOR	PLAIN W/TAPERED ENDS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763,CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763,CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE	0.750 INCHES ALL ENDS IN
SPECIAL FEATURES	RD MTG FLANGE 2.313 IN. DIA,WITH 4 BOLT HOLES 0.220 MIN,0.226 IN. MAX DIA OF BOLT HOLES,WELDED 0.313 IN. FROM END IN
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3B ALL ENDS
MATERIAL	STEEL OVERALL

OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008

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 123721-2?

123721-2 is a COUPLING,BOSS.

What is the NSN for 123721-2?

123721-2 is cataloged in the U.S. Government catalog under NSN 4730-00-439-6034. This indicates validated use in U.S. government and defense supply chains.

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123721-2 — COUPLING,BOSS

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