Model: D38999-28-4F

Hexagon Plain Nut

Properties:

Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 3.17 millimeters and 3.62 millimeters
Width Across Flats
Between 32.91 millimeters and 36.00 millimeters
Thread Series
Iso m
Thread Pitch In Millimeters
1.00
Bearing Surface Type
Flat
Thread Tolerance Class
6h internal
Material
Aluminum alloy
Test Data Document
81349-38999 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81349-38999/28 government specification
NSN
5310-01-517-8157
Part Number
D38999-28-4F
Description
Nut,plain,hexagon
CAGE
81349

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part D38999-28-4F NSN 5310-01-517-8157

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01857
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7616995095
  • SITC: 69979
  • End Use: Finished metal shapes
  • NAICS: 332999
  • USDA: 1

Freight Class: Articles of aluminum nesoi

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