Tube Coupling Nut

NSN: 4730-00-859-3517 | Model: AS21921

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

NSN Properties and Flags

NATO Stock Number

4730-00-859-3517

DEMIL

Thread Class

Thread Direction

Right-hand

Fabrication Method

Any acceptable

Nut Style

Tube coupling

Nut Height

0.860 inches

End Application

Rtf33-p-3/5/9 (c/ec-135, b-52h) aircraft engine. Tf33-pw-102 (c-135e, ec-135h/k/p), sh-60f asw carrier based helicopter. Mh-53e helicopter. Tf-33-p-7 (c-141 a/b) aircraft engine. Lamps mk iii landing system helicopter.

Width Across Flats

0.875 inches

Length To Shoulder

0.609 inches

Smallest Inside Diameter

0.552 inches

Thread Series

Unj

Thready Qty Per Inch (tpi)

Thread Size

0.750 inches

Tube Outside Diameter

0.500 inches

Seat Angle

45.00 degrees

Criticality Code Justification

Feat

Special Features

Weapon system essential

Material

Steel comp 304

Material Specification

66 federal standard single material response

Surface Treatment

Passivate

Specification Data

96906-ms21921 government standard

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 4730-00-859-3517 Datasheet

Supply Class (FSC):

Railing Fittings Lubrication Tube Pipe Hose

Cross Reference:

AS21921
AS18280
CVC4257-8J
CVC4257J8
MS21921-8J
MS21921-8J
MS21921-8J
MS21921-8J
MS21921-8J
MS21921-8J
MS21921-8J

Cage Codes:

Society Of Automotive Engineers Inc (CAGE 81343)
Triumph Aerostructures, Llc (CAGE 80378)
Faber Enterprises, Inc. (CAGE 14397)
Sps Technologies, Llc (CAGE 01673)
Globe Aerospace Inc (CAGE 03647)
Military Standards (CAGE 96906)
Aeroquip Llc. Eaton (CAGE 00624)
Designed Metal Connections, Inc. (CAGE 14798)

Replacements:

4730-00-859-3517 replaces 4730-00-182-5902

Schedule B & Trade:

Schedule B: 7318160000 (NAICS 332722)

Nuts of iron or steel
SITC: 69421

Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, threaded, of iron or steel
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

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature but does have other critical featur (s) such as tolerance, fit restrictions or application.

Freight Information:

NMFC:

093486 - Bolts, nuts or screws, noi (sub 3)
WCC:

573 - Bolts or nuts (iron or steel),(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
Sms
AAC
D
Quantity per pack
25
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 $10.49 to $17.48..
Does NSN 4730-00-859-3517 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, Department Of The Navy, U.s. Coast Guard, Poland, Brazil, Spain, Israel, Singapore, Australia, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Portugal, Denmark, Norway, Greece, Turkey, and Nato Maintenance and Supply Agency
What is the NIIN of NSN 4730-00-859-3517?
008593517 or 00-859-3517
Does NSN 4730-00-859-3517 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-859-3517?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 11, 1967