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Datasheet. 390MAR1 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a and 2b
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand and RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.437in. and 0.500in. ⁓1/2"
Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.
not casehardened
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.375in. ⁓3/8"
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
1.875in. ⁓1-7/8"
The number of holes or slots included.
4
Designates the thread diameter and number of threads per specific measurement scale.
3-15/16IN-12 and 2-5/8IN-12
The angle of the end surface upon which the mated surface seats,expressed in degrees.
45.0
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
uns and un
Indicates the location of the screw thread.
external and internal
The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.
2.031in.
3.937in.
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.
steel, fed std 66, comp 1117
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 1117
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
round, external thread, inverted flare
Answers.
1EA
Round, external thread, inverted flare
Steel comp 1117
0.375 inches
0.437 inches and 0.500 inches
Right-hand and right-hand
3a and 2b
FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings
Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).
NSN 4730-00-874-5561 PACKING NUT
round, external thread, inverted flare 1.875" overall length 0.375" hole diameter 0.437" thread length right-hand 3a thread class
- NIIN
- 008745561
- NIIN Date
- 01/01/60
- Schedule B
- Name Code
- 18028
- FIIG
- T385-E
- Item Weight
- 2.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $98.05 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Department of The Navy
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Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- LCL (less than a car load rating)
- Unknown
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Bolts or nuts (iron or steel),(less than 35 feet)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other packing nuts with similar characteristics
Nothing similar to this part number was found in our inventory
390MAR1 / Packing nutWhat is the formal definition of this item?
An item having internal and/or external machine thread(s) (threads other than pipe or hose series), specifically designed to retain, by means or groove(s), shoulder(s), and the like, packing and/or a packing gland within a stuffing box. see also bushing, machine thread; inverted nut, tube coupling; and nut, tube coupling. excludes packing nut, stuffing tube; and use with electrical cable, and locknut, pipe.
