Boss Elbow

NSN: 4730-00-278-3682 | Model: AS4875

A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. The boss connections have external and/or internal machine threads (straight threads other than pipe or hose series), and are designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side or heel inle (s) . It is designed to join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. Excludes elbow, tube.

NSN Properties and Flags

NATO Stock Number

4730-00-278-3682

DEMIL

Thread Class

3b all ends

Connection Style

Gasket seal (boss) all ends

Leg Length

0.742 inches all ends and 0.758 inches all ends

Connection Type

Threaded internal boss all ends

Thready Qty Per Inch (tpi)

20 all ends

Thread Size

0.438 inches all ends

Flow Angle

90.0 degrees

Special Features

End item: grumman a10 aircraft

Material

Aluminum alloy

Surface Treatment

Anodize

Surface Treatment Specification

Mil-a-8625 military specification single treatment response outside

Thread Series Designator

Unjf all ends

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE7M317Q0591	2017-04-10	PMCMD	178 EA

Inventory Check

The last inventory check on this NSN was done on 09/16/2021. Due to rapid changes in inventory this may not be the current stock qty.

New Surplus: 151
New: 123
Serviceable: 150
As Removed: 1
Overhauled: 1

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.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4730-00-278-3682 Datasheet

Supply Class (FSC):

Railing Fittings Lubrication Tube Pipe Hose

Cross Reference:

AS4875
AS5190
71910041001
946.21.44.111
AS5190W04
AN939D4
AN939D4
AN927D4
AN939-4D
AN939D4
AN939W4
AN939D4
AN939D4
AN939D4
AN939D4
AN939D4
AN939D4
AN939D4

Cage Codes:

Society Of Automotive Engineers Inc (CAGE 81343)
Kollsman, Inc. (CAGE 89944)
Pilatus Aircraft Ltd (CAGE S4080)
Satair A/s (CAGE R1120)
Collins Engineering Corp (CAGE 71563)
Aeronautical Standards Group (CAGE 88044)
Allan Aircraft Supply Co, Llc (CAGE 06581)
Hydro Fitting Manufacturing (CAGE 13899)
Faber Enterprises, Inc. (CAGE 14397)
Aeroquip Llc. Eaton (CAGE 00624)
Aerofit, Llc (CAGE 30974)
Designed Metal Connections, Inc. (CAGE 14798)
Crown Fitting Co Inc (CAGE 22995)

Replacements:

4730-00-278-3682 replaces 4730-00-277-1920
4730-00-278-3682 replaces 4730-00-278-3689
4730-00-278-3682 replaces 4730-01-528-8069

Schedule B & Trade:

Schedule B: 7609000000 (NAICS 332919)

Aluminum tube or pipe fittings (couplings, elbows sleeves)
SITC: 68427

Aluminum and aluminum alloy tube and pipe fittings (e.G. Couplings, elbows and sleeves)
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:

051400 - Pipe fittings aluminum
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:

P - 77.5
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
D
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 $20.98 to $34.97..
Does NSN 4730-00-278-3682 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, National Aeronautics and Space Administration, Slovenia, Poland, Brazil, Spain, Columbia, Israel, Singapore, Kuwait, Malaysia, Australia, Canada, New Zealand, France, Germany, Republic Of Korea, Philippines, Netherlands, Italy, Denmark, Norway, Greece, and Turkey
What is the NIIN of NSN 4730-00-278-3682?
002783682 or 00-278-3682
Does NSN 4730-00-278-3682 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-278-3682?
Solicitation SPE7M317Q0591 for qty 178 on 04/04/2017
When was this national stock number assigned to the federal catalog?
Jan 01, 1961