2R1861-7

View detailed technical data, stock status, and sourcing information for: 2R1861-7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-313-9330

Item Name Code

22846

Assigment Date

01/20/1990 (36 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

0.181 inches minimum and 0.241 inches maximum thread length, flat countersunk head style, 2a thread class, 0.516 inches minimum and 0.546 inches maximum fastener length, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.181 inches minimum and 0.241 inches maximum
Fastener Length: 0.516 inches minimum and 0.546 inches maximum
Head Style: flat countersunk
Head Diameter: 0.223 inches nominal
Shoulder Diameter: 0.141 inches minimum and 0.142 inches maximum first shoulder
Shoulder Length: 0.265 inches minimum and 0.335 inches maximum first shoulder
Internal Drive Style: slot
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 33.0 rockwell c minimum and 37.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Shoulder Shape: round first shoulder
Color: orange top of head
Material: steel comp 4037 or steel comp 8740 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unc

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
2R1861-7	Shoulder Screw
AIC551C-06-359	Shoulder Screw
BM19069-06-359	Shoulder Screw
GS551C06-359	Shoulder Screw
PBF1285-06-359	Shoulder Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-313-9330?

The FSCG of the NSN 5305-01-313-9330 is 5305

Does the NSN 5305-01-313-9330 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-313-9330 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-01-313-9330 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-313-9330 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-313-9330 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sat, Jan 20, 1990