1787777-4 — LOCKNUT,PIPE

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

1787777-4: LOCKNUT,PIPE.

The LOCKNUT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL EXCEPT INSERT, nut_style: PIPE LOCKNUT, nut_height: 0.228 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, thread_class: 2B, thread_series: NPSL, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-670-6032, 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

1787777-4

NSN: 4730-00-670-6032
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL OVERALL EXCEPT INSERT
nut_style	PIPE LOCKNUT
nut_height	0.228 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
thread_class	2B
thread_series	NPSL
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL EXCEPT INSERT
width_across_flats	1.125 INCHES NOMINAL IN
nominal_thread_size	0.500 INCHES IN
packing_recess_depth	0.129 INCHES NOMINAL IN
end_item_identification	SPRUANCE CLASS DD (963)
packing_recess_diameter	0.969 INCHES NOMINAL IN
NSN	4730-00-670-6032

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.125 INCHES NOMINAL IN

•

PACKING RECESS DIAMETER: 0.969 INCHES NOMINAL IN

•

THREAD SERIES: NPSL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.500 INCHES IN

•

NUT HEIGHT: 0.228 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN

•

SURFACE TREATMENT: CADMIUM OVERALL EXCEPT INSERT

•

NUT STYLE: PIPE LOCKNUT

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.125 INCHES NOMINAL IN
PACKING RECESS DIAMETER	0.969 INCHES NOMINAL IN
THREAD SERIES	NPSL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.500 INCHES IN
NUT HEIGHT	0.228 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
SURFACE TREATMENT	CADMIUM OVERALL EXCEPT INSERT
NUT STYLE	PIPE LOCKNUT
THREAD CLASS	2B
END ITEM IDENTIFICATION	SPRUANCE CLASS DD (963)

SUBSTITUTES & CROSS-REFERENCES 5

B112-8P-2Reference document

Same NSN cross-reference

Reference document — Secondary reference

4730006706033Reference document

Same NSN cross-reference

Reference document — Secondary reference

350-TSE01-50Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

4730006706032Reference document

Same NSN cross-reference

Reference document — Secondary reference

8764826Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 1787777-4?

1787777-4 is a LOCKNUT,PIPE.

What parts can replace 1787777-4?

There are 5 known substitutes for 1787777-4: B112-8P-2, 4730006706033, 350-TSE01-50 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1787777-4?

1787777-4 is cataloged in the U.S. Government catalog under NSN 4730-00-670-6032. This indicates validated use in U.S. government and defense supply chains.

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1787777-4 — LOCKNUT,PIPE

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