PBF1263-3-8

View detailed technical data, stock status, and sourcing information for: PBF1263-3-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-033-2635

Item Name Code

04905

Assigment Date

01/02/1977 (49 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

0.313 inches minimum and 0.363 inches maximum thread length, 0.823 inches minimum and 0.853 inches maximum fastener length, 3a thread class, dished hexagon head style, 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: 3a
Thread Direction: right-hand
Thread Length: 0.313 inches minimum and 0.363 inches maximum
Fastener Length: 0.823 inches minimum and 0.853 inches maximum
Head Style: dished hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Shoulder Diameter: 0.2490 inches minimum and 0.2495 inches maximum first shoulder
Shoulder Length: 0.490 inches minimum and 0.510 inches maximum first shoulder
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Shoulder Shape: round first shoulder
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std single material response overall
Surface Treatment: passivate overall
Thread Series Designator: unf

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
PBF1263-3-8	Shoulder Bolt
S11-1065-3-8	Shoulder Bolt
ST3M494-3-8	Shoulder Bolt
VS3251-3-8	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-033-2635?

The FSCG of the NSN 5306-01-033-2635 is 5306

Does the NSN 5306-01-033-2635 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-033-2635 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 5306-01-033-2635 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-033-2635 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 5306-01-033-2635 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sun, Jan 2, 1977