NSN 5305-01-537-5403

Shoulder Screw
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
--
NIIN:
015375403

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Inventory

 

This product may be available in the following quantities and conditions.

  • NE: 3

Please note that inventory for this NSN was updated 06/26/2025 and may have changed since then. Request a quote for up to date pricing and availability.

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

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

5305-01-537-5403 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAJD
Thread Class
3a
MRC:
AAJF
Thread Direction
Right-hand
MRC:
AASA
Thread Length
0.500 inches
MRC:
AASB
Fastener Length
Between 1.245 inches and 1.255 inches
MRC:
AASK
Head Style
Flat chamfer
MRC:
AASL
Head Diameter
Between 0.543 inches and 0.562 inches
MRC:
AASU
Head Height
Between 0.240 inches and 0.250 inches
MRC:
AATN
Shoulder Diameter
0.371 inches first shoulder and 0.373 inches first shoulder
MRC:
AATX
Shoulder Length
0.750 inches first shoulder
MRC:
AAWU
Single Shear Strength
10500 pounds per square inch
MRC:
ABQZ
Internal Drive Style
Hexagon
MRC:
AHYM
Thread Diameter
0.312 inches
MRC:
ASDB
Width Across Flats
0.188 inches
MRC:
CMLP
Thready Qty Per Inch (tpi)
18
MRC:
CQBC
Min. Tensile Strength (psi)
160000 pounds per square inch
MRC:
CWYB
Shoulder Shape
Round first shoulder
MRC:
CXCY
Part Name Assigned By Controlling Agency
Screw shoulder
MRC:
HUES
Color
Black
MRC:
MATT
Material
Steel uns k03104
MRC:
MDCL
Material Specification
Stm a574 national std/spec single material response
MRC:
SFTT
Surface Treatment
Oxide
MRC:
THSD
Thread Series Designator
Unrc

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:
12705-6C-20B
Cage Code:
56878
RNCC:
3
RNVC:
2
DAC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

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

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
Concept No.:
App. Key:
SL
Cond. Code:
1
Status:
A

Special material and handling

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
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.

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.