NAS1291-4

Hexagon Self-locking Nut

NSN 5310-00-808-7027

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
008087027

Product Technical Spec.

Thread Class:
3b
Thread Direction:
Right-hand
Locking Feature:
Prevailing torque all metal design
Nut Style:
Hexagon
Nut Height:
Between 0.205 inches and 0.219 inches
Width Across Flats:
Between 0.305 inches and 0.316 inches
Tempurature Rating:
550.0 degrees fahrenheit
Thread Series:
Unf
Thready Qty Per Inch (tpi):
28
Thread Size:
0.250 inches
Bearing Surface Type:
Washer faced
Material:
Steel
Surface Treatment:
Cadmium
NSN:
5310-00-808-7027
Item Name:
Locknut
Cage Code:
KCF40

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
NAS1291-4
Cage Code:
80205
RNCC:
3
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
Cond. Code:
1
Status:
A

Part Materials

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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Pricing & Availability

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Definition Definition of approved item name (AIN): "Locknut"

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.

MOE Major Organizational Entities

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BRAZIL Brazil
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SINGAPORE Singapore
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MALAYSIA Malaysia
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AUSTRALIA Australia
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FRANCE France
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GERMANY Germany
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REPUBLIC OF KOREA Republic of Korea
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UNITED KINGDOM United Kingdom
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PORTUGAL Portugal
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Import / Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Classification: Nuts of iron or steel


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