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Worldwide distributor of NSN parts and consumables located in the USA.

Boss Nipple

Model / MPN: AS18280 | NSN: 4730-00-009-8259
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.

Product Details
NATO Stock Number
4730-00-009-8259
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a all ends
Maximum Operating Temp
-65.0 degrees fahrenheit 2nd response
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
Nominallength
1.062 inches
Material
Steel comp 316 or steel comp 304
Material Specification
66, 300 series federal standard single material response
Media For Which Designed
Air 2nd response
Media For Which Designed
Hydraulic fluid 1st response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, e300, type 2 military specification single treatment response outside
Surface Treatment Specification
Mil-s-5002 military specification single treatment response inside
Style Designator
Flareless (tube)
Style Designator
Flareless w/ center wrenching facility
Thread Series Designator
Unjf all ends
AS182 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC17TF623 Nipple, Boss 137 EA 04/13/2017
SPE7M417T8316 Nipple, Boss 354 EA 10/02/2017
SPE7M318T043S Nipple, Boss 503 EA 07/23/2018
SPE7M319T1474 Nipple, Boss 709 EA 11/13/2018

Pricing and Availability

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AS18280 Cross Reference
  • AS21902
  • MS21902K4
  • 1376-18-515
  • MS21902K4