NSN 4730-01-449-9669

Tube Fitting Locknut
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
014499669

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Inventory

 

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

  • NE: 233
  • NS: 6

Please note that inventory for this NSN was updated 08/18/2025 and may have changed since then. Request a quote for up to date pricing and availability.

Product Definition Definition of approved item name (AIN): "LOCKNUT,TUBE FITTING"

An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.

4730-01-449-9669 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAJF
Thread Direction
Right-hand
MRC:
ADEA
Nut Height
1.375 inches
MRC:
AGAV
End Application
2320-21-913-4649 cage 56161
MRC:
ALET
Hole Type And Quantity
1 tapped
MRC:
ASDB
Width Across Flats
0.410 inches
MRC:
BZRR
Thread Series
Un
MRC:
CQJX
Thread Size
1.0625 inches
MRC:
CQRJ
Tube Outside Diameter
0.750 inches
MRC:
CQTW
Hole Thready Qty Per Inch (tpi)
12
MRC:
CRHC
Hole Configuration Style
Configuration c
MRC:
CSPF
Hole Thread Diameter
1.067 inches
MRC:
MATT
Material
Steel nut and stainless steel nut
MRC:
SFTT
Surface Treatment
Zinc nut
MRC:
ZZZK
Specification Data
Ms51860a government specification
MRC:
ZZZT
Nondefinitive Specification/std Data
Ii style and 3/4in od tube size

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:
MS51860-58Z
Cage Code:
96906
RNCC:
2
RNVC:
2
DAC:
E
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Inidicates part number has been superseded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:
17645
FIIG:
A021A0
Concept No.:
App. Key:
CW
Cond. Code:
1
Status:
A

Special material and handling

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

Item does not contain precious metal.

Criticality X

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

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
093486
NMF Description:
Noi (sub 3) Nuts Or Screws Bolts
UFC:
48950
LTL:
Rating variable
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ADC:
A
ACC:
B

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 576

Metal and metal products, nos, (less than 35 feet).

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)