Model: BH1291C-3MFA

Extended Washer Self-locking Nut

Special Features:

Fluorescent penetrant inspect

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.330 inches
Lubrication
Dry film lubricant
Overall Height
Between 0.154 inches and 0.188 inches
Nut Style
Hexagon
Washer Thickness
0.015 inches
Width Across Flats
Between 0.243 inches and 0.252 inches
Tempurature Rating
450.0 degrees fahrenheit
Thread Series
Unf
Thready Qty Per Inch (tpi)
32
Thread Size
0.190 inches
Criticality Code Justification
Feat
Material
Iron alloy 660
Material Specification
Ams 5735 assn standard single material response
Surface Treatment
Passivate
Test Data Document
81349-mil-n-25027 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.).
NSN
5310-00-894-3638
Part Number
BH1291C-3MFA
Description
Nut,self-locking,extended Washer
CAGE
27238

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part BH1291C-3MFA NSN 5310-00-894-3638

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29730
FIIG:
A021A0
Concept No.:
1
App. Key:
BT
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:
SX
CRITL:
F

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
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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