Boss Elbow

NSN: 4730-00-277-2458 | Model: AN939-8D

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

4730-00-277-2458

DEMIL

Thread Class

3b all ends

Maximum Operating Temp

225.0 degrees fahrenheit 1st response

End Application

Hawk missile mim-23 and sikorsky cargo transport helicoper ch-54a, ch-54b

Connection Style

Gasket seal (boss) all ends

Leg Length

1.000 inches 2nd end

Connection Type

Threaded internal boss all ends

Thread Size

0.750 inches all ends

Flow Angle

90.0 degrees

Material

Aluminum alloy 2014 or aluminum alloy 2024

Material Specification

Qq-a-225/4, t6 federal specification 1st material response or qq-a-225/6, t6 federal specification 2nd material response

Media For Which Designed

Oxygen, gaseous 2nd response

Surface Treatment

Anodize

Surface Treatment Specification

Mil-a-8625, type 2, cl 2 military specification single treatment response

Thread Series Designator

Unjf all ends

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE7M320T8944	2020-05-04	PMCM4	396 EA
SPE7M320T7252	2020-03-23	PMCM4	320 EA
SPE7M320T3659	2019-12-23	PMCM4	117 EA
SPE7M318T152L	2018-09-17	PMCM4	83 EA

Inventory Check

The last inventory check on this NSN was done on 03/28/2022. Due to rapid changes in inventory this may not be the current stock qty.

New: 413
New Surplus: 141
As Removed: 1
Serviceable: 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 4730-00-277-2458 Datasheet

Supply Class (FSC):

Railing Fittings Lubrication Tube Pipe Hose

Cross Reference:

AN939-8D
AN939DS
AN939D8
3111496
3111496
AN927-8D
AN927D8
3111496

Cage Codes:

Aeronautical Standards Group (CAGE 88044)
Embraer S.a. (CAGE 001JK)
Embraer Aviation International (CAGE FB459)
Embraer Empresa Brasileira De (CAGE S4956)

Replacements:

4730-00-277-2458 replaces 4730-00-187-1384
4730-00-277-2458 replaces 4730-00-277-1927
4730-00-277-2458 replaces 4730-00-614-0208

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 $20.37 to $33.95..
Does NSN 4730-00-277-2458 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, Poland, Brazil, Spain, Columbia, Israel, Argentina, Singapore, Kuwait, Malaysia, Australia, Belgium, Canada, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Portugal, Italy, Denmark, Norway, Greece, and Turkey
What is the NIIN of NSN 4730-00-277-2458?
002772458 or 00-277-2458
Does NSN 4730-00-277-2458 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-277-2458?
Solicitation SPE7M320T8944 for qty 396 on 04/24/2020
When was this national stock number assigned to the federal catalog?
Jan 01, 1961