MS51840-21CP — PLUG,MACHINE THREAD

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

MS51840-21CP: PLUG,MACHINE THREAD.

The PLUG,MACHINE THREAD is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, head_height: 0.323 INCHES NOMINAL IN, thread_class: 2A EXTERNAL A, thread_length: 0.245 INCHES NOMINAL EXTERNAL IN, overall_length: 0.600 INCHES NOMINAL IN, connection_style: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5365-01-495-5345, 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

MS51840-21CP

NSN: 5365-01-495-5345
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 5P967 — DANTE VALVE COMPANY (USA)

SPECIFICATIONS

material	COPPER ALLOY OVERALL
head_height	0.323 INCHES NOMINAL IN
thread_class	2A EXTERNAL A
thread_length	0.245 INCHES NOMINAL EXTERNAL IN
overall_length	0.600 INCHES NOMINAL IN
connection_style	PLAIN
special_features	THIS ITEM SHALL BE OXYGEN CLEANED IN ACCORDANCE WITH MIL-STD-1330
style_designator	PLUG, MACHINE
thread_direction	RIGHT-HAND EXTERNAL
nominal_thread_size	0.313 INCHES EXTERNAL IN
end_item_identification	RELIEF VALVE;NIMITZ CLASS CVN
thread_series_designator	UNF EXTERNAL
NSN	5365-01-495-5345

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.323 INCHES NOMINAL IN

•

CONNECTION STYLE: PLAIN

•

THREAD LENGTH: 0.245 INCHES NOMINAL EXTERNAL IN

•

CRITICALITY CODE JUSTIFICATION: ZZZY

•

STYLE DESIGNATOR: PLUG, MACHINE

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND EXTERNAL

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.323 INCHES NOMINAL IN
CONNECTION STYLE	PLAIN
THREAD LENGTH	0.245 INCHES NOMINAL EXTERNAL IN
CRITICALITY CODE JUSTIFICATION	ZZZY
STYLE DESIGNATOR	PLUG, MACHINE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH	0.600 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE	0.313 INCHES EXTERNAL IN
SPECIAL FEATURES	THIS ITEM SHALL BE OXYGEN CLEANED IN ACCORDANCE WITH MIL-STD-1330

SUBSTITUTES & CROSS-REFERENCES 3

D1400-943 ITEM 21CPSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

D1400-943Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

D1400-943 ITEM 21Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 MS51840-21CP?

MS51840-21CP is a PLUG,MACHINE THREAD.

What parts can replace MS51840-21CP?

There are 3 known substitutes for MS51840-21CP: D1400-943 ITEM 21CP, D1400-943, D1400-943 ITEM 21. Substitute compatibility should be verified for your specific system.

What is the NSN for MS51840-21CP?

MS51840-21CP is cataloged in the U.S. Government catalog under NSN 5365-01-495-5345. This indicates validated use in U.S. government and defense supply chains.

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