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Boss Nipple

NSN: 4730-00-009-8259 | Model: AS18280
ITAR Registered seal

A straight, one-piece fitting used to join two bosses or boss fittings. Both ends are the same size and have external machine threads (straignt threads other than pipe or hose series). It is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. The center section may be suitably shaped to accommodate a wrench.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Thread Class
3a all ends
Maximum Operating Temp
275.0 degrees fahrenheit 1st response
Connection Style
External seat for gasket seal (boss) all ends
Connection Type
Threaded external boss all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches all ends
1.062 inches
Steel comp 316 or steel comp 304
Material Specification
66, 300 series federal standard single material response
Media For Which Designed
Hydraulic fluid 1st response
Surface Treatment
Surface Treatment Specification
Mil-s-5002 military specification single treatment response inside
Style Designator
Flareless w/ center wrenching facility
Thread Series Designator
Unjf all ends
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE7M319T1474 2018-11-13 PMCM4 709 EA
SPE7M417T8316 2017-10-02 PMCMD 354 EA
SPE7MC17TF623 2017-04-13 PMCMU 137 EA

Inventory Check

The last inventory check on this NSN was done on 06/30/2020. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 135
  • New: 63

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 4730-00-009-8259 Datasheet

Supply Class (FSC):
Railing Fittings Lubrication Tube Pipe Hose
Cross Reference:
  • AS18280
  • AS21902
  • MS21902K4
  • 1376-18-515
  • MS21902K4
Cage Codes:
  • Society Of Automotive Engineers Inc (CAGE 81343)
  • Finmeccanica Spa (CAGE A0199)
  • Military Standards (CAGE 96906)
  • 4730-00-009-8259 replaces 4730-01-170-3696
Schedule B & Trade:
  • Schedule B: 7307994000 (NAICS 332919)

    Other fittings nesoi of alloy steel not stainless

  • SITC: 67959

    Iron and steel tube and pipe fittings, n.E.S.

  • End Use: 12110

    Iron and steel products, other


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


U - Precious metal content is unknown


- 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
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • 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 $27.01 to $45.02..
Does NSN 4730-00-009-8259 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, Defense Logistics Agency, Poland, Brazil, Spain, Israel, Singapore, Malaysia, Australia, Canada, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Philippines, Portugal, Italy, Denmark, Norway, Greece, and Turkey
What is the NIIN of NSN 4730-00-009-8259?
000098259 or 00-009-8259
Does NSN 4730-00-009-8259 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-009-8259?
Solicitation SPE7M319T1474 for qty 709 on 11/02/2018
When was this national stock number assigned to the federal catalog?
Aug 09, 1972