Model: SLB255-L4-14

Close Tolerance Bolt

Special Features:

Undrilled head and threads; wrenching element no. 10

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.468 inches
Fastener Length
1.343 inches
Head Style
Spline extended washer
Head Height
0.250 inches
Extended Washer Diameter
0.465 inches
Extended Washer Thickness
0.036 inches
Grip Diameter
Between 0.249 inches and 0.250 inches
Head Minor Diameter
0.312 inches
End Application
Fighter aircraft (f18 e/f)
Thread Diameter
0.250 inches
Grip Length
0.875 inches
Thready Qty Per Inch (tpi)
28
Part Name Assigned By Controlling Agency
Inavy: bolt, close tolerance; dwg: bolt - close tolerance, spline, flange head, 220 ksi ftu, cres
Material
Stainless steel
Material Specification
Ph13-8mo per ams 5629 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Ams-qq-p-35 assn standard single treatment response
Thread Series Designator
Unjf
NSN
5306-01-541-5270
Part Number
SLB255-L4-14
Description
Bolt,close Tolerance
CAGE

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Part SLB255-L4-14 NSN 5306-01-541-5270

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27851
FIIG:
A003B0
Concept No.:
App. Key:
BC
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

Freight Classification

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

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this close tolerance bolt (NSN 5306-01-541-5270) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

Highest Rated Parts
Recently Purchased Parts
Hot Parts