K19887-31-3 — NUT,SLEEVE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

K19887-31-3: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_length: 0.252 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), boss_thickness: 0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM OVERALL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-024-3108, 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

K19887-31-3

NSN: 5310-01-024-3108
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_length	0.252 INCHES NOMINAL IN
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
boss_thickness	0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM OVERALL IN
thread_direction	RIGHT-HAND
surface_treatment	SILVER OVERALL
nominal_thread_size	0.190 INCHES IN
thread_quantity_per_inch	32
material_document_and_classification	AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OR AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN	5310-01-024-3108

COMPONENT DIAGRAM

KEY FEATURES

•

NUT LENGTH: 0.252 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OR AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.190 INCHES IN

•

BOSS THICKNESS: 0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM OVERALL IN

•

SURFACE TREATMENT: SILVER OVERALL

TECHNICAL CHARACTERISTICS

NUT LENGTH	0.252 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OR AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.190 INCHES IN
BOSS THICKNESS	0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM OVERALL IN
SURFACE TREATMENT	SILVER OVERALL
THREAD CLASS	3B
THREAD QUANTITY PER INCH	32

SUBSTITUTES & CROSS-REFERENCES 2

ZL2440-4-02Reference document

Same NSN cross-reference

Reference document — Secondary reference

327B496P7Reference document

Same NSN cross-reference

Reference document — Vendor item drawing 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 K19887-31-3?

K19887-31-3 is a NUT,SLEEVE.

What parts can replace K19887-31-3?

There are 2 known substitutes for K19887-31-3: ZL2440-4-02, 327B496P7. Substitute compatibility should be verified for your specific system.

What is the NSN for K19887-31-3?

K19887-31-3 is cataloged in the U.S. Government catalog under NSN 5310-01-024-3108. This indicates validated use in U.S. government and defense supply chains.

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