Model: BACS21Y4BC

Turnlock Fastener Stud Assembly

Properties:

Diameter

Between 0.251 inches and 0.256 inches

Turnlock Stud Head Style

Stud head

Stud Assembly Style

Stud assembly

Distance From Engaging Member To Largest Bearing Surface Of Head

0.512 inches

Eyelet Outside Diameter

0.247 inches

Eyelet Length

0.328 inches

Material Accommodated Thickness

Between 0.120 inches and 0.149 inches

Drive Type

Slotted

Stud Head Height

Between 0.069 inches and 0.076 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Cobalt alloy ejector springsteel comp 305 eyeletcobalt alloy pincopper alloy 172 stud

Material Specification

Qq-s-766 federal specification single material response eyeletqq-c-530 federal specification single material response stud

Surface Treatment

Passivate eyelet

NSN

5325-01-337-6111

Part Number

BACS21Y4BC

Description

Stud Assembly,turnlock Fastener

CAGE

81205

A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stud(s) without cam slots or cam lead threads are provided with a crosspin or eared nut for locking with the mating receptacle, turnlock fastener. May be spring loaded. For like items having a threaded fastener, see screw assembly, panel or screw, panel fastener.

Part BACS21Y4BC NSN 5325-01-337-6111

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

18484

FIIG:

A05400

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

066440

UFC:

36960

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 9607190000
SITC: 89985
End Use: Finished textile supplies
NAICS: 339993
USDA: 1

Freight Class: Slide fasteners, nesoi