B20H51 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

B20H51: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, leg_length: 2.920 INCHES NOMINAL IN, overall_length: 5.546 INCHES NOMINAL IN, connection_style: PLAIN ALL ENDS, special_features: DESIGN ANALYSIS; NUCLEAR HARDNESS CRITICAL, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-050-9832, 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

B20H51

NSN: 4730-00-050-9832
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)

SPECIFICATIONS

material	COPPER ALLOY BODY
leg_length	2.920 INCHES NOMINAL IN
overall_length	5.546 INCHES NOMINAL IN
connection_style	PLAIN ALL ENDS
special_features	DESIGN ANALYSIS; NUCLEAR HARDNESS CRITICAL
style_designator	MALE COUPLING HALF
features_provided	SELF-SEALING
nominal_thread_size	2.000 INCHES ALL ENDS IN
quick_disconnect_method	PUSH-LOCK ALL ENDS
thread_series_designator	NPT ALL ENDS
criticality_code_justification	FEAT
nominal_pipe_size_accommodated	2.000 INCHES ALL ENDS IN
NSN	4730-00-050-9832

COMPONENT DIAGRAM

KEY FEATURES

•

NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES ALL ENDS IN

•

CONNECTION STYLE: PLAIN ALL ENDS

•

CRITICALITY CODE JUSTIFICATION: FEAT

•

STYLE DESIGNATOR: MALE COUPLING HALF

•

LEG LENGTH: 2.920 INCHES NOMINAL IN

•

FEATURES PROVIDED: SELF-SEALING

•

NOMINAL THREAD SIZE: 2.000 INCHES ALL ENDS IN

TECHNICAL CHARACTERISTICS

NOMINAL PIPE SIZE ACCOMMODATED	2.000 INCHES ALL ENDS IN
CONNECTION STYLE	PLAIN ALL ENDS
CRITICALITY CODE JUSTIFICATION	FEAT
STYLE DESIGNATOR	MALE COUPLING HALF
OVERALL LENGTH	5.546 INCHES NOMINAL IN
LEG LENGTH	2.920 INCHES NOMINAL IN
FEATURES PROVIDED	SELF-SEALING
NOMINAL THREAD SIZE	2.000 INCHES ALL ENDS IN
SPECIAL FEATURES	DESIGN ANALYSIS; NUCLEAR HARDNESS CRITICAL
MATERIAL	COPPER ALLOY BODY

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 2

MAT88479-2Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6408-116Reference 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 B20H51?

B20H51 is a COUPLING HALF,QUICK DISCONNECT.

What parts can replace B20H51?

There are 2 known substitutes for B20H51: MAT88479-2, 6408-116. Substitute compatibility should be verified for your specific system.

What is the NSN for B20H51?

B20H51 is cataloged in the U.S. Government catalog under NSN 4730-00-050-9832. This indicates validated use in U.S. government and defense supply chains.

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B20H51 — COUPLING HALF,QUICK DISCONNECT

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