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Tube Fitting Clinch Sleeve

NSN: 4730-01-030-8691 | Model: MS51825-4

A flanged cylindrical item having a sharp cutting surface on the inside diameter at the end opposite the flange. The cutting edge, in use, is designed to imbed in the tubing due to pressure exerted when the outside diameter of the sleeve is forced into and against an angular seat. This firmly attaches the sleeve to the tubing and the flanged end then serves as a bearing surface for the coupling nut to bring the tubing into the mating fitting.

NSN Properties and Flags
NATO Stock Number
4730-01-030-8691
DEMIL
NO
Casehardening Indicator
Not casehardened
Overall Length
Between 0.367 inches and 0.370 inches
Metallic Hardness Rating
99.5 rockwell b
End Application
1025-01-026-6648; howitzer, med towed 155-mm, m198
Flange Outside Diameter
Between 0.430 inches and 0.435 inches
Seat Angle In Deg
40.0
Sleeve Outside Diameter
Between 0.372 inches and 0.375 inches
Hose/tube Outside Diameter For Which Designed
0.312 inches
Material
Steel
Material
Steel
Surface Treatment
Cadmium and chromate
Style Designator
Flareless
Surface Treatment
Cadmium, qq-p-416, type 2, class 3

Parts List for Towed Medium Howitzer  

Other components in the assembly of NSN 1025-01-026-6648
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE7M115TBB91 2015-09-29 c0116 374 PG

Pricing and Availability

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NSN 4730-01-030-8691 Datasheet

Supply Class (FSC):
Railing Fittings Lubrication Tube Pipe Hose
Cross Reference:
  • MS51825-4
  • MS51825-4A
  • MIL-F-18866
Cage Codes:
  • Military Standards (CAGE 96906)
  • Military Specifications (CAGE 81349)
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:

    052190 - Pipe, tubing, or pipe or tubing fitti

  • WCC:

    576 - Metal and metal products, nos, (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
    Z
  • 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 $2.92 to $4.86..
Does NSN 4730-01-030-8691 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, U.s. Marine Corps, and Department Of The Navy
What is the NIIN of NSN 4730-01-030-8691?
010308691 or 01-030-8691
Does NSN 4730-01-030-8691 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-01-030-8691?
Solicitation SPE7M115TBB91 for qty 374 on 09/25/2015
When was this national stock number assigned to the federal catalog?
Nov 12, 1976