Model: 203688C7

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Lubrication

Soluble lubricant

Nut Style

Hexagon

Nut Height

0.188 inches

End Application

W/s: stream (std. Tensioned replenishment at sea method); fire control system, missile mk74 (fcs); support equipment, b-1 aircraft; guided missile launching system, mk 26 (gmls); airborne mobile dir air spt ctl (2id), (02m jul83)(an/uyq-3a); support equipment, b-52 aircraft; radar set, an/tpn-18; aircraft, sof (ac-130h, mc-130h, ec-130e, hc-130); communications terminal, satellite an/gsc-3 (v) 1

Width Across Flats

Between 0.336 inches and 0.345 inches

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unjc

Thready Qty Per Inch (tpi)

Thread Size

0.164 inches

Countersink Angle

88.0 degrees nut

Bearing Surface Type

Chamfered or washer faced

Bearing Surface Finish

125.0 microinches

Material

Plastic polyamide locking insert

Material

Stainless steel nut

Surface Treatment

Passivate nut

Surface Treatment Specification

Qq-p-35 federal specification single treatment response except insert

NSN

5310-00-939-0850

Part Number

203688C7

Description

Nut,self-locking,hexagon

CAGE

71313

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 203688C7 NSN 5310-00-939-0850

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05277

FIIG:

A021A0

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

Pricing & Availability Check

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel