B1531-C-3/8-11

View detailed technical data, stock status, and sourcing information for: B1531-C-3/8-11
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-385-0768

Item Name Code

40280

Assigment Date

01/04/1994 (32 years ago)

An item designed to fit over a packing gland by mating with a surface of a second part which together will retain into a narrow groove or confined space the packing, preformed or o-ring, or an item designed to fit over a rod or shaft, to mate with a stuffing box to confine packing material. It may function as a static or dynamic seal retainer with the packing located on, around, or in the centerline direction of the rod or shaft axis. It may have holes or joints for mounting, be threaded or unthreaded. See also packing nut and packing nut, stuffing tube.

right-hand left internal (includes thru thread) thread direction, 0.526 inches nominal left internal (includes thru thread) thread length, 0.495 inches minimum and 0.505 inches maximum length, hexagon cross-sectional shape, 2b left internal (includes thru thread) thread class

Product Characteristics

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

Thread Class: 2b left internal (includes thru thread)
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.526 inches nominal left internal (includes thru thread)
Length: 0.495 inches minimum and 0.505 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.245 inches nominal
Thread Quantity Per Inch: 32 left internal (includes thru thread)
Nominal Thread Size: 0.138 inches left internal (includes thru thread)
Right Projection Diameter: 0.147 inches nominal
Right Projection Length: 0.146 inches nominal
Material: copper alloy overall
Surface Treatment: cadmium overall
Style Designator: projection one end
Thread Series Designator: unc left internal (includes thru thread)
Specification/Standard Data: 80205-nas1830 professional/industrial association standard

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
350-3928-20-07-00	Spacing Threaded Standoff
3549-C-632-B	Spacing Threaded Standoff
3549C632B3	Spacing Threaded Standoff
671-003-9120	Spacing Threaded Standoff
B1531-C-3/8-11	Spacing Threaded Standoff
NAS1830B04C06	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-385-0768?

The FSCG of the NSN 5340-01-385-0768 is 5340

Does NSN 5340-01-385-0768 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 5340-01-385-0768 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-385-0768 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-385-0768 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Tue, Jan 4, 1994