C387V4-18

Close Tolerance Screw

NSN 5305-00-431-7217

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
004317217

Product Features

Bearing surface of head to be grooved to 0.323 in. Min 0.325 in. Max dia, 0.050 in. Min 0.055 in. Max from top of head

Technical Specifications of NSN

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.352 inches and 0.402 inches
Fastener Length:
Between 1.487 inches and 1.517 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.412 inches and 0.439 inches
Grip Diameter:
Between 0.2490 inches and 0.2495 inches
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
Between 1.115 inches and 1.135 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
Between 59.75 degrees and 60.25 degrees
Material:
Titanium alloy uns r54520
Material Specification:
Nas621, comp 6al-4v assn standard single material response
Thread Series Designator:
Unjf
NSN:
5305-00-431-7217
Item Name:
Screw,machine,flat-head,close Tolerance
Cage Code:
81755

Other Related Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
VT1039V4-18
Cage Code:
92215
RNCC:
3
RNVC:
2
RNAAC:
SE
Status:
A
MSDS:
SADC:
Part Number:
CS318642V4-18
Cage Code:
93907
RNCC:
3
RNVC:
2
RNAAC:
SE
Status:
A
MSDS:
SADC:
Part Number:
AIC1023V4-18
Cage Code:
06725
RNCC:
3
RNVC:
2
RNAAC:
SE
Status:
A
MSDS:
SADC:
Part Number:
64040V4-18
Cage Code:
80539
RNCC:
3
RNVC:
2
RNAAC:
TU
Status:
A
MSDS:
SADC:
Part Number:
HR101V-4-18
Cage Code:
73197
RNCC:
3
RNVC:
2
RNAAC:
KZ
Status:
A
MSDS:
SADC:
Part Number:
HR101V-4-18
Cage Code:
L4528
RNCC:
3
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
64040V4-18
Cage Code:
56878
RNCC:
5
RNVC:
9
RNAAC:
TU
Status:
A
MSDS:
SADC:

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136500
UFC:
68455
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Close Tolerance Flat-head Machine Screw"

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

MOE Major Organizational Entities

Entity
DSOR
User:
DEPARTMENT OF THE AIR FORCE Dept. of the Air Force
DSOR:
Import / Export
  • Schedule B: 8109900000
  • SITC: 69987
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Classification: Zirconium and articles thereof nesoi


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