Model: SM-B-552121

Turnlock Fastener Stud Assembly

Properties:

Diameter

Between 0.298 inches and 0.308 inches

Securing Device Type

Ring

Turnlock Stud Head Style

Flat fillister

Stud Assembly Style

Stud assembly

Distance From Engaging Member To Largest Bearing Surface Of Head

0.635 inches

Eyelet Outside Diameter

Between 0.244 inches and 0.250 inches

Eyelet Length

0.322 inches

Material Accommodated Thickness

Between 0.030 inches and 0.059 inches

Drive Type

Slotted

Features Provided

Sealing ring

Stud Head Height

Between 0.088 inches and 0.098 inches

Material

Steel

Surface Treatment

Nickel stud

Surface Treatment Specification

Qq-n-290, cl 1 type 4 federal specification single treatment response stud

NSN

5325-00-081-7748

Part Number

SM-B-552121

Description

Stud Assembly,turnlock Fastener

CAGE

80063

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 SM-B-552121 NSN 5325-00-081-7748

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:

0.1000lbs

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