Model: FF-N-836

Hexagon Plain Nut
Description:

2b thread class, right-hand , hexagon nut style, 0.258 inches nut height, 0.489 inches width across flats, unc thread series, 18 thread quantity per inch.

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.258 inches and 0.273 inches
Width Across Flats
Between 0.489 inches and 0.500 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
18
Hardness Rating
Between 95.0 rockwell b and 32.0 rockwell c
Thread Size
0.312 inches
Bearing Surface Type
Flat
Material
Steel
Material Specification
Sae j995, grade 2 assn standard single material response or ff-n-836, table 4, grade b federal specification single material response
Surface Treatment
Cadmium and chromate or chromate zinc
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification 1st treatment response or qq-z-325, type 2, class 3 federal specification 2nd treatment response
Specification Data
24617-120376 manufacturers standard and 81348-ff-n-836 government specification and 96906-ms35690/canceled/ government standard
Nondefinitive Specification/std Data
2 type and 4 style and 5/16-18unc size
Departure From Cited Document
As modified by matl
NSN
5310-00-012-0376
Part Number
FF-N-836
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 FF-N-836 NSN 5310-00-012-0376

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
573
TCC:
Z
SHC:
9
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

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