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Tube Coupling Nut

NSN: 4730-00-025-7508 | Model: MS51823-5

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
4730-00-025-7508
DEMIL
NO
Thread Class
2b
Thread Direction
Right-hand
Fabrication Method
Any acceptable
Nut Style
Tube coupling
Nut Height
Between 0.730 inches and 0.770 inches
End Application
2350-01-031-0586
Width Across Flats
0.688 inches
Length To Shoulder
Between 0.568 inches and 0.583 inches
Smallest Inside Diameter
Between 0.380 inches and 0.383 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
18
Thread Size
0.562 inches
Tube Outside Diameter
0.375 inches
Seat Angle
45.00 degrees
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification all treatment responses

Parts List for Self-propelled Medium Howitzer  

Other components in the assembly of NSN 2350-01-031-0586

Inventory Check

The last inventory check on this NSN was done on 04/21/2022. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 138
  • New: 431

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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NSN 4730-00-025-7508 Datasheet

Supply Class (FSC):
Railing Fittings Lubrication Tube Pipe Hose
Cross Reference:
  • MS51823-5
  • MILF18866
  • 9902-2501
  • 5-BU-S
  • MS51823-5
  • 1P 266
  • 1P0266
  • MS51823-5
  • MS51823-5
  • MS51823-5
  • 4730000257508
  • MS51823-5
  • MS51823-5
  • 5-BU-S
  • MS51823-5
Cage Codes:
  • Military Standards (CAGE 96906)
  • Military Specifications (CAGE 81349)
  • Hannay Reels, Inc. (CAGE 92858)
  • Hannifin Corporation Parker (CAGE 30780)
  • Caterpillar Inc. (CAGE 11083)
  • Aeroquip Inc Eaton (CAGE 01276)
  • Imperial (CAGE 30327)
  • Dana Corp (CAGE 79470)
  • E.c.a Etablissement (CAGE SCY13)
  • Hannifin Corporation Parker (CAGE 45681)
  • Aeroquip Llc. Eaton (CAGE 00624)
  • Hannifin Corporation Parker (CAGE 98441)
Replacements:
  • 4730-00-025-7508 replaces 4730-01-103-3690
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

U - Precious metal content is unknown

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:

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

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    D
  • Quantity per pack
    10
  • 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 $1.86 to $3.11..
Does NSN 4730-00-025-7508 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, Department Of The Navy, Austria, Lithuania, Brazil, Spain, Israel, Singapore, Kuwait, Morocco, Australia, Belgium, Canada, New Zealand, France, Republic Of Korea, Netherlands, Portugal, Denmark, Greece, and Turkey
What is the NIIN of NSN 4730-00-025-7508?
000257508 or 00-025-7508
Does NSN 4730-00-025-7508 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-025-7508?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 26, 1972