N66-02-002BPC37 — Technical Data Sheet

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— · NUT WASHER

WHAT YOU NEED TO KNOW

Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration

Don't mix grades — weakens the joint

PRODUCT OVERVIEW

The NUT,PLAIN,SQUARE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1045 OVERALL, nut_style: SQUARE, nut_height: 1.125 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-00-275-1983, 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

N66-02-002BPC37

NSN: 5310-00-275-1983
FSC: 5310
CAGE: 51228 — ECOLAIRE INC BALDWIN-HAMILTON CO DIV (USA)

SPECIFICATIONS

material	STEEL COMP 1045 OVERALL
nut_style	SQUARE
nut_height	1.125 INCHES NOMINAL IN
thread_class	3B
thread_series	UNF
thread_direction	RIGHT-HAND
width_across_flats	1.750 INCHES NOMINAL IN
nominal_thread_size	1.125 INCHES IN
bearing_surface_type	FLAT
hole_configuration_style	CONFIGURATION D
thread_quantity_per_inch	12
material_document_and_classification	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-275-1983

COMPONENT DIAGRAM

KEY FEATURES

•

HOLE CONFIGURATION STYLE: CONFIGURATION D

•

NOMINAL THREAD SIZE: 1.125 INCHES IN

•

THREAD CLASS: 3B

•

WIDTH ACROSS FLATS: 1.750 INCHES NOMINAL IN

•

THREAD QUANTITY PER INCH: 12

•

NUT HEIGHT: 1.125 INCHES NOMINAL IN

•

NUT STYLE: SQUARE

TECHNICAL CHARACTERISTICS

HOLE CONFIGURATION STYLE	CONFIGURATION D
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
NOMINAL THREAD SIZE	1.125 INCHES IN
THREAD CLASS	3B
WIDTH ACROSS FLATS	1.750 INCHES NOMINAL IN
THREAD QUANTITY PER INCH	12
NUT HEIGHT	1.125 INCHES NOMINAL IN
NUT STYLE	SQUARE
THREAD SERIES	UNF
THREAD DIRECTION	RIGHT-HAND

VERIFIED SUBSTITUTES & CROSS-REFERENCES 8

6002-125InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

00791InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

0791InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

N68-02-003BPC33InterchangeableGOVERNMENT REGISTRY

Same NIIN cross-reference

interchangeable

N60-71-001ITEM3InterchangeableGOVERNMENT REGISTRY

Same NIIN cross-reference

interchangeable

N66-02-001BPC37InterchangeableGOVERNMENT REGISTRY

Same NIIN cross-reference

interchangeable

LIFECYCLE

StatusACTIVEGOVERNMENT REGISTRY

AvailabilityOEM and secondary market

RoHS CompliantEAR99Not HAZMAT

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FREQUENTLY ASKED QUESTIONS

What is N66-02-002BPC37?

N66-02-002BPC37 is a NUT,PLAIN,SQUARE.

What parts can replace N66-02-002BPC37?

There are 8 known substitutes for N66-02-002BPC37: 6002-125, 00791, 0791 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for N66-02-002BPC37?

N66-02-002BPC37 is cataloged in the Federal Logistics Information System under NSN 5310-00-275-1983. This indicates validated use in U.S. government and defense supply chains.

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N66-02-002BPC37 — Technical Data Sheet

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