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Tube Coupling Nut

NSN: 4730-01-398-8324 | Model: MS51531B6Z

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

NSN Properties and Flags
NATO Stock Number
4730-01-398-8324
DEMIL
NO
Thread Class
2b
Thread Direction
Right-hand
Fabrication Method
Machined
Nut Style
Tube coupling
Nut Height
0.720 inches
End Application
4520-01-367-2739
Width Across Flats
0.688 inches
Length To Shoulder
0.603 inches
Smallest Inside Diameter
0.440 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
18
Thread Size
0.562 inches
Tube Outside Diameter
0.375 inches
Material
Steel
Surface Treatment
Zinc
Specification Data
96906-ms51531 government standard
Nondefinitive Specification/std Data
12 figure

Parts List for Portable Duct Type Heater  

Other components in the assembly of NSN 4520-01-367-2739
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE7M116T5353 2015-11-16 PMCMK 538 EA

Pricing and Availability

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NSN 4730-01-398-8324 Datasheet

Supply Class (FSC):
Railing Fittings Lubrication Tube Pipe Hose
Cross Reference:
  • MS51531B6Z
  • MS51531
Cage Codes:
  • Military Standards (CAGE 96906)
Schedule B & Trade:
  • Schedule B: 7318160000 (NAICS 332722)

    Nuts of iron or steel

  • SITC: 69421

    Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, threaded, of iron or steel

  • End Use: 12300

    Finished metal shapes

Identification:
HMIC

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

PMIC

A - Item does not contain precious metal.

CRITL

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

Freight Information:
  • NMFC:

    093486 - Bolts, nuts or screws, noi (sub 3)

  • WCC:

    573 - Bolts or nuts (iron or steel),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

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

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    J2200x-
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $9.64 to $16.07..
Does NSN 4730-01-398-8324 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, New Zealand, and Republic Of Korea
What is the NIIN of NSN 4730-01-398-8324?
013988324 or 01-398-8324
Does NSN 4730-01-398-8324 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-01-398-8324?
Solicitation SPE7M116T5353 for qty 538 on 11/05/2015
When was this national stock number assigned to the federal catalog?
Nov 09, 1994