BS-21-6-NB Equivalent & Substitute Parts

Part Overview

The BS-21-6-NB is a red insulated spade terminal connector manufactured by 3M, designed for crimp termination of 18-22 AWG wire onto a 6 stud. This flanged terminal is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when they maintain functional compatibility across critical electrical and mechanical parameters including wire gauge, stud size, termination method, and insulation specifications.

Key Parameters

Parameter	BS-21-6-NB
Wire Gauge	18-22 AWG
Stud/Tab Size	6 Stud
Termination Type	Crimp
Terminal Type	Flanged
Insulation Material	Polyamide (PA), Nylon
Color	Red
Contact Material	Copper, ETP
Contact Finish	Tin
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the BS-21-6-NB is determined by strict equivalence across the following parameters:

Wire gauge range (18-22 AWG)
Stud size (6 stud)
Crimp termination method
Flanged terminal configuration
Insulated design with polyamide nylon insulation
Red color specification
Tin-plated copper contact material
RoHS3 compliance

The substitute part PN18-6FF-C meets all critical substitution criteria. Minor dimensional variations in outer width, overall length, and insulation diameter fall within acceptable tolerances for mechanical fit and electrical performance in standard applications.

Parameter Comparison

Parameter	BS-21-6-NB (3M)	PN18-6FF-C (Panduit)
Wire Gauge	18-22 AWG	18-22 AWG
Stud/Tab Size	6 Stud	6 Stud
Terminal Type	Flanged	Flanged
Termination	Crimp	Crimp
Color	Red	Red
Contact Material	Copper, ETP	Copper
Contact Finish	Tin	Tin
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Width - Outer Edges	0.300" (7.62mm)	0.280" (7.11mm)
Length - Overall	0.840" (21.34mm)	0.810" (20.57mm)
Insulation Diameter	0.145" (3.68mm)	0.136" (3.45mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS Code	8536.90.4000	8536.90.4000

Engineering Selection Recommendations

Both BS-21-6-NB and PN18-6FF-C are Active status products with ROHS3 compliance and EAR99 classification. Selection between these parts is based on availability and application-specific dimensional requirements. The PN18-6FF-C features serrated termination, which provides enhanced mechanical retention during the crimp process. Dimensional differences are minor and do not affect functional compatibility in standard 18-22 AWG wire termination applications on 6 stud connections.

Frequently Asked Questions (FAQ)

Q: Can PN18-6FF-C replace BS-21-6-NB in all applications?

A: Yes, PN18-6FF-C is functionally equivalent for applications requiring 18-22 AWG wire termination on 6 stud connections. Both parts share identical wire gauge, stud size, termination method, insulation material, and compliance certifications.

Q: What is the significance of the dimensional differences between these parts?

A: The dimensional variations (width, length, and insulation diameter) are minor and within acceptable mechanical tolerances. These differences do not affect electrical performance or compatibility with standard 6 stud connectors.

Q: Does the serrated termination feature on PN18-6FF-C affect compatibility?

A: The serrated termination on PN18-6FF-C enhances mechanical retention during crimping but does not affect compatibility. Both parts are designed for crimp termination of the same wire gauge range.

Q: Are both parts RoHS3 compliant?

A: Yes, both BS-21-6-NB and PN18-6FF-C are ROHS3 compliant and carry EAR99 export classification.

Q: What packaging is available for these parts?

A: Both parts are supplied in bulk packaging. BS-21-6-NB has 808 pieces in stock, while PN18-6FF-C has 1112 pieces in stock.

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