NSN 5305-01-642-5178 NIIN 016425178 — Machine Screw

NSN
Item Name
Assigned
DEMIL
Shelf Life
UOM
Using Services
NSN:
5305-01-642-5178
5305016425178
Description:
SCREW,MACHINE
NSN Assigned:
27-FEB-15
DEMIL:
NO
Shelf Life:
N/A
UOM:
--
Using Services:
--

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Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   Customer service objectives
  •   Every product 100% inspected
AS9120 Certified by SAI Global

5305-01-642-5178 Specification Set by the OEM (see RNCC code 3)

Thread Class AAJD:

3a

Thread Direction AAJF:

RIGHT-Hand

Thread Length AASA:

2.276in. and 2.355in. ⁓2-23/64"

Fastener Length AASB:

2.4215in. and 2.4685in. ⁓2-15/32"

Head Style AASK:

hexagon

Head Height AASU:

0.125in. and 0.140in. ⁓9/64"

Width Between Flats AATB:

0.367in. and 0.376in.

Internal Drive Style ABQZ:

cross recess type 1

Nominal Thread Diameter AHYM:

0.250in. ⁓1/4"

Thread Quantity Per Inch CMLP:

28

Minimum Tensile Strength CQBC:

160000 pounds per square inch

Screw Material CYAU:

iron alloy 660

Screw Material Document And Classification CYAW:

ams 5731 assn std single material response or ams 5737 assn std single material response

Screw Surface Treatment CYBA:

passivate

Screw Surface Treatment Document And Classification CYBE:

QQ-P-35 fed spec single treatment response

Bearing Surface Of Head Surface Finish CYBH:

63.0 microinches

Thread Surface Finish CYBL:

32.0 microinches

Thread Series Designator THSD:

unjf

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
NAS1802-4-39
Cage Code:
80205
RNCC:
3
RNVC:
2
DAC:
3
RNAAC:
9Z
Status:
A
MSDS:
SADC:

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
Cond. Code:
1
Status:
A
HEAD STYLE HEXAGON style nsn 5305-01-642-5178
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1 style nsn 5305-01-642-5178

Definition Definition of approved item name (AIN): "SCREW,MACHINE"

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

5305-01-642-5178 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
ADPE:
0
CRITL:
X
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) A

Item does not contain precious metal.

Electrostatic Discharge (ESD) A

No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.

ADPE 0

Represents items with no adp components

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

  Identification Codes

HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.

PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.