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Tube Fitting Locknut

NSN: 4730-00-277-6371 | Model: AN6289-4D

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 rin (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.

NSN Properties and Flags
NATO Stock Number
4730-00-277-6371
DEMIL
NO
Thread Class
3b
Thread Direction
Right-hand
Nut Style
Tube fitting locknut
Nut Height
0.281 inches
End Application
Grumman a10 aircraft; boeing vertol cargo transport helicopter, model c-47; f-18 aircraft
Width Across Flats
0.688 inches
Thread Series
Unf
Packing Recess Diameter
0.608 inches
Packing Recess Depth
0.042 inches
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Tube Outside Diameter
0.250 inches
Material
Aluminum alloy 2014
Material Specification
Qq-a-225/4, alloy 2014, t6 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2, class 2 military specification single treatment response
Specification Data
88044-an6289 government standard
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE7M319T1819 2018-11-16 PMCM4 2591 EA

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 4730-00-277-6371 Datasheet

Supply Class (FSC):
Railing Fittings Lubrication Tube Pipe Hose
Cross Reference:
  • AN6289-4D
  • AN6289-4D
  • AS5179D04
  • AN6289D4
  • AN6289D4
  • AN6289D4
  • AN6289D4
  • AN6289D4
  • MIL-F-5509
  • Q37-4
  • AN6289D4
  • 10086128
  • 477 676
  • 752 522
  • 5857-0403
  • 905857-0403
  • AN6289D4
  • AN6289D4
  • AN6289D4
Cage Codes:
  • Aeronautical Standards Group (CAGE 88044)
  • Bae Systems Operations Ltd (CAGE K2861)
  • Society Of Automotive Engineers Inc (CAGE 81343)
  • Aeroquip Llc. Eaton (CAGE 00624)
  • Faber Enterprises, Inc. (CAGE 14397)
  • Allan Aircraft Supply Co, Llc (CAGE 06581)
  • Crown Fitting Co Inc (CAGE 22995)
  • Military Standards (CAGE 96906)
  • Hughes Missile Systems Co (CAGE 14170)
  • Litton Systems Inc (CAGE 14597)
  • Nimikkeistokeskus Ncb Finland (CAGE A486G)
  • Piper Aircraft Inc. (CAGE 77294)
  • Fenwal, Inc. Kidde (CAGE 0KDP7)
  • Satair A/s (CAGE R1120)
  • Designed Metal Connections, Inc. (CAGE 14798)
  • Collins Engineering Corp (CAGE 71563)
Replacements:
  • 4730-00-277-6371 replaces 4730-00-208-5195
  • 4730-00-277-6371 replaces 4730-00-337-8739
  • 4730-00-277-6371 replaces 4730-01-056-9433
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:

    013540 - Alum nuts

  • 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:

    Q - 70.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    D
  • Quantity per pack
    100
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    J22bxx-
  • 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 $2.35 to $3.92..
Does NSN 4730-00-277-6371 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, Department Of The Navy, U.s. Coast Guard, National Aeronautics and Space Administration, National Aeronautics and Space Administration, Austria, Finland, Lithuania, Slovenia, Poland, Romania, Bulgaria, Brazil, Spain, Columbia, Israel, Singapore, Kuwait, Malaysia, Thailand, Australia, Belgium, Canada, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Philippines, Netherlands, Portugal, Italy, Denmark, Norway, Greece, Turkey, and Nato Maintenance and Supply Agency
What is the NIIN of NSN 4730-00-277-6371?
002776371 or 00-277-6371
Does NSN 4730-00-277-6371 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-277-6371?
Solicitation SPE7M319T1819 for qty 2591 on 11/06/2018
When was this national stock number assigned to the federal catalog?
Jan 01, 1961