Tube Coupling Nut

NSN: 4730-00-859-3521 | Model: MS21921-10C

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

4730-00-859-3521

DEMIL

Thread Class

Thread Direction

Right-hand

Fabrication Method

Any acceptable

Nut Style

Tube coupling

Nut Height

0.980 inches

Width Across Flats

1.000 inches

Length To Shoulder

0.687 inches

Smallest Inside Diameter

0.690 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.875 inches

Tube Outside Diameter

0.625 inches

Seat Angle

45.00 degrees

Material

Steel comp 304

Material Specification

Qq-s-763 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

Mil-s-5002 military specification single treatment response

Specification Data

96906-ms21921 government standard

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE7M318T085H	2018-08-20	C0138	32 PG

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 4730-00-859-3521 Datasheet

Supply Class (FSC):

Railing Fittings Lubrication Tube Pipe Hose

Cross Reference:

MS21921-10C
MS21921-10J
MS21921-10J

Cage Codes:

Military Standards (CAGE 96906)
Society Of Automotive Engineers Inc (CAGE 81343)

Replacements:

4730-00-859-3521 replaces 4730-00-585-7326

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 or any other critical feature such as tolerance, fit restriction 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 $14.99 to $24.98..
Does NSN 4730-00-859-3521 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, Poland, Brazil, Spain, Israel, Australia, Canada, Germany, Republic Of Korea, United Kingdom, Norway, Greece, and Nato Maintenance and Supply Agency
What is the NIIN of NSN 4730-00-859-3521?
008593521 or 00-859-3521
Does NSN 4730-00-859-3521 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4730-00-859-3521?
Solicitation SPE7M318T085H for qty 32 on 08/08/2018
When was this national stock number assigned to the federal catalog?
Oct 11, 1967