Model: 6503-77 ITEM 25

Hexagon Self-locking Nut

Special Features:

Nut, two inches -4-1/2 unc-2b, cres.

Properties:

Criticality Code Justification

Zzzy

Material

Stainless steel

Reference Number Differentiating Characteristics

Material controlled iaw navsea 0948-lp-045-7010 material control standard for level 1 items. Critical item for safety and sutvival of deep submergence research and rescur vehicels as differentiated by special test features.

NSN

5310-01-568-0756

Part Number

6503-77 ITEM 25

Description

Nut,self-locking,hexagon

CAGE

43689

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 6503-77 ITEM 25 NSN 5310-01-568-0756

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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