Model: 938.56.31.106

Sheet Spring Nut

Properties:

Material Thickness

Between 0.002 inches and 0.022 inches

Mating Member Diameter Accommodated

0.138 inches

Nut Style

Sheet spring

Nut Length

Between 0.661 inches and 0.681 inches

Nut Height

Between 0.678 inches and 0.698 inches

Nut Width

Between 0.271 inches and 0.291 inches

Panel Thickness

Between 0.302 inches and 0.322 inches

End Application

Helicopter, seahawk, h-60; aircraft, stratolifter c-135; helicopter, lamps mark iii, sh-60b; aircraft, t-38; aircraft, harrier av-8b

Material

Copper alloy

Surface Treatment

Cadmium or zinc and chromate or zinc and phosphate

Surface Treatment Specification

Qq-p-416, type 1, class 2 federal specification 1st treatment response or qq-z-325 federal specification 2nd treatment response or qq-z-325 federal specification 3rd treatment response or qq-z-325 federal specification 4th treatment response or qq-z-325 federal specification 5th treatment response

NSN

5310-00-928-3878

Part Number

938.56.31.106

Description

Nut,sheet Spring

CAGE

S4080

A nut formed from sheet spring material, usually steel, into varying flat, concave, bent or curved designs, having apertures with suitable boss or bosses usually on the upper side capable of securely gripping a mating threaded member. Excludes nut (1), stamped.

Part 938.56.31.106 NSN 5310-00-928-3878

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01865

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:

013540

UFC:

05680

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415290000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper screws, nuts, bolts, rivets, and other fasteners not threaded