H185B4-9R

View detailed technical data, stock status, and sourcing information for: H185B4-9R
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-693-4093

Item Name Code

06657

Assigment Date

02/10/2021 (5 years ago)

An arrangement of adjustable straps and hardware, such as buckles, d-rings, and the like, designed to aid mountain and/or rescue. It may be equipped with a sling for raising and lowering and may have provision for the attachment of various mountaineering equipment and tools.

3a thread class, flat countersunk head style, 0.9655 inches nominal fastener length, right-hand thread direction, 0.403 inches nominal thread length

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.403 inches nominal
Fastener Length: 0.9655 inches nominal
Head Style: flat countersunk
Head Diameter: 0.399 inches maximum
Head Height: 0.063 inches nominal
Internal Drive Style: torque set
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.00 degrees maximum
Part Name Assigned By Controlling Agency: bolt, 100 degrees reduced head, torq-set or hex recess, 1
Screw Material: steel comp h11
Screw Material Document And Classification: ams-6487 assn std single material response
Screw Surface Treatment: aluminum
Screw Surface Treatment Document And Classification: mil-c-83488 type ii, class 3 mil spec single treatment response
Special Features: grip diameter is 0.2637 inch to 0.2643 inch
Thread Series Designator: unjf

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
121558-4-A9BX	Machine Screw
121558-49BX	Machine Screw
AIC985-4-9BR	Machine Screw
AIC985B4-9R	Machine Screw
C7985B4-9R	Machine Screw
H185B4-9R	Machine Screw
IAC985-4-9BR	Machine Screw
VT1694AS4-9X	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-693-4093?

The FSCG of the NSN 5305-01-693-4093 is 5305

Does the NSN 5305-01-693-4093 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-693-4093 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 5305-01-693-4093 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-693-4093 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 5305-01-693-4093 was assigned to the Federal Catalog?

It was assigned 5 years ago, on Wed, Feb 10, 2021