NSN 5305-00-331-4851 NIIN 003314851 — Shoulder Screw

NSN
Item Name
Assigned
DEMIL
Shelf Life
UOM
Using Services
NSN:
5305-00-331-4851
5305003314851
Description:
SCREW,SHOULDER
NSN Assigned:
16-DEC-73
DEMIL:
NO
Shelf Life:
N/A
UOM:
No qup EA
Using Services:
Air Force

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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

5305-00-331-4851 Specification Set by the OEM (see RNCC code 3)

Thread Class AAJD:

3a

Thread Direction AAJF:

RIGHT-Hand

Thread Length AASA:

0.443in. and 0.510in. ⁓33/64"

Fastener Length AASB:

0.828in. and 0.875in. ⁓7/8"

Head Style AASK:

flat countersunk undercut

Head Diameter AASL:

0.501in. and 0.506in.

Head Height AASU:

0.0652in. and 0.0672in. ⁓5/64"

Shoulder Diameter AATN:

0.2641in. first shoulder and 0.2651in. first shoulder

Shoulder Length AATX:

0.264in. first shoulder and 0.286in. first shoulder

Internal Drive Style ABQZ:

HIGH-Torque

Nominal Thread Diameter AHYM:

0.250in. ⁓1/4"

Thread Quantity Per Inch CMLP:

28

Countersink Angle CRSQ:

100.0 degrees

Shoulder Shape CWYB:

round first shoulder

Special Features FEAT:

furnished with one rubber o ring

Material MATT:

steel comp 4140 or steel comp 4340 or steel comp 8740 or steel comp 8735 or steel comp 4130

Material Document And Classification MDCL:

MIL-S-5626 mil spec 1st material response or MIL-S-5000 mil spec 2nd material response or MIL-S-6049 mil spec 3rd material response or MIL-S-6098 mil spec 4th material response or MIL-S-6758 mil spec 5th material response

Surface Treatment SFTT:

cadmium and chromate

Surface Treatment Document And Classification STDC:

QQ-P-416, ty 2, cl 2 fed spec single treatment response

Thread Series Designator THSD:

unf

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:
3M50-4-6
Cage Code:
76301
RNCC:
3
RNVC:
2
DAC:
2
RNAAC:
SB
Status:
A
MSDS:
SADC:
Part Number:
54267-4-6
Cage Code:
56878
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
SB
Status:
A
MSDS:
SADC:
Part Number:
HT41UA6
Cage Code:
73197
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
SB
Status:
A
MSDS:
SADC:
Part Number:
HT409A4-6
Cage Code:
06950
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
HT41UA6
Cage Code:
L4528
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
ZZ
Status:
A
MSDS:
SADC:
Part Number:
54267-4-6
Cage Code:
50392
RNCC:
5
RNVC:
9
DAC:
5
RNAAC:
SB
Status:
A
MSDS:
SADC:
Part Number:
HT409A4-6
Cage Code:
92215
RNCC:
5
RNVC:
9
DAC:
5
RNAAC:
SB
Status:
A
MSDS:
SADC:

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
HEAD STYLE FLAT COUNTERSUNK UNDERCUT style nsn 5305-00-331-4851
INTERNAL DRIVE STYLE HIGH-TORQUE style nsn 5305-00-331-4851

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.

5305-00-331-4851 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
ADPE:
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) U

Precious metal content is unknown

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.

Material Management Material categorization and source of supply

SOS
SMIC
MMAC
MCC
SOS:
SMS
SOS:
MMAC:
SX
MCC:
SOS:
SMS
SOS:
MMAC:
MCC:
Source of Supply (SOS) SMS

Defense logistics agency, enterprise business systems

Material Management (MMAC) SX

Brac mmac for oc-alc

  Material Codes

SOS: Source of Supply. A three position code or routing identifier code (ric), which identifies the source of supply activity.

SMIC: Special Material Indicator Code. A two position code, which categorizes material on the basis of requirements for source or quality control, technical design or configuration control, procurement, stocking and issue control, special receipt, inspection, testing, storage, or handling.

MMAC: Material Management Aggregation Code. A two position code that identifies an item of supply to be managed by a specific activity manager.

MCC: Material Echelon Code. A two position code employed by the marine corps in classifying items into categories by materiel category and procurement echelon. the alphanumeric management code is in the first position and identifies the materiel category

IMC: Denotes wether items shall be subjected to integrated management under the defense supply agency or retained by the individual military service or other department of defense components for their management. Assigned by th activity responsible for item management coding.